понедельник, 21 декабря 2015 г.

In NASA signed a third contract for the delivery of astronauts on the ISS

On the eve of the third NASA signed a contract for the delivery of astronauts on board the ISS. This will the company Boeing, for which the planned flight will be the second mission, approved by the American space agency.
As reported in NASA, the second contract with Boeing provides for the delivery of astronauts to the International Space Station manned spacecraft Boeing CST-100 Starliner. The agreement on another flight was achieved agencies and companies before, in May this year. In addition, another contract for the launch of spacecraft to the ISS NASA has concluded with the company Elon Musk SpaceX. "After passing the certification of ships NASA launches Boeing CST-100 Starliner and SpaceX Crew Dragon crews on board will take place twice a year", - explained the managing program NASA's development of private manned spacecraft (Commercial Crew Program) Katie Leders.
In general, within the framework of Commercial Crew Transportation Capability US space agency plans to sign four contracts (three in view of the latter have already been signed). Terms launch vehicles not yet been approved, but the first one is scheduled for late 2017. The International Space Station, according to specialists, will remain in orbit until at least 2028.

The power of nature in the pictures Dave Sanford


Photographer Dave Sanford Canada published a stunning series of images surging waves of Lake Erie. Erie - the fourth largest lake in the Great Lakes. Dave shot his project on windy days, when the lake rose particularly large wave.
"These days people are trying to stay away from the lake. And in those days, when the Erie alive, you can see its true power. I looked forward to this time of year to make those shots, "- says Sandford.

суббота, 12 декабря 2015 г.

Solar System - an anomaly on the background of the rest of the galaxy


Over the past four years due to the Space Telescope "Kepler" we have learned that in our galaxy are so many planets. But the most interesting fact that we got for "Kepler" - is that among these planets there is nothing like our own solar system. Faktrum telling details.

This fact is well seen on the example of the animation "Planetarium Kepler IV», created by a graduate student at the Department of Astronomy at the University of Washington Ethan Cruz. It Kruse compares hundreds of exoplanets orbit of Kepler's database to our own solar system, which is represented in the animation on the right and catches the eye. The animation shows the relative size of the planets Kepler (although, of course, not comparable with the scale of the stars), and the surface temperature.

In the animation it is very easy to see how strange it seems the solar system compared to other systems. Prior to the mission, "Kepler" in 2009, astronomers expect, the majority of exoplanet systems will be arranged by our type: Small stone closer to the center of the planet, a huge gas giants in the middle, and chunks of ice stone in the periphery. But it turned out that everything is arranged much more bizarre.

"Kepler" found "hot Jupiter", a huge gas giants that almost touch the stars system. As he explains Kruse, "device" Kepler "dictates that it is much better to pinpoint the planet with more compact orbits. In smaller systems, the planets will revolve in their orbits, so the telescope is much easier to detect them. "
Of course, the abnormality of the solar system from the crowd could be due to the fact that our knowledge of other systems are still insufficient, or because, as explained above, we mostly notice the smaller system with fast frequency movement. However, the "Kepler" has found 685 star systems, and none of them is not like ours.
Far beyond the orbit of Neptune may be hiding unknown planet


Astronomers from Sweden and Mexico reported the first observation of a large object on the far edge of the solar system. We know about him is very little: it does not emit their own light, and may be at a distance of about 300 radius of Earth's orbit. An object can be both a planet several times larger than ours, and the brown dwarf - its orbit and mass of the unknown.

With ALMA, astronomers planned a telescope to study the Alpha Centauri system in the submillimeter range - as far as is known today, it consists of three stars. However, the 5.5 seconds of arc from the star saw a new, previously unknown source of radiation. Looking to the catalog compiled from observations of powerful cosmic infrared telescope WISE, the authors did not receive aid when WISE shot right part of the sky, a potential object passed the Alpha Centauri star system and can be invisible in their bright background.

The mysterious body time to get the name of αCen D, as a new fourth member of Alpha Centauri. However, the findings rule out that it belongs neighboring star system. For nearly a year elapsed between observing sessions (July 2014 and May 2015 gg.), ΑCen D too much shifted to the background stars A and Alpha Centauri (Rigel and Bunguly). It is also unlikely that he belongs to the Kuiper Belt, is not like a star and did not correspond to any of the nearly 800 thous. Of known objects in the solar system ... Researchers concluded that the most likely is a "trans-Neptunian objects extreme» (Extreme Trans Neptunian Object , ETNO), previously unknown, and large body rotating far beyond the orbit of Neptune.

Available observations is not enough to draw definite conclusions. However, the hypothesis of building did not forbid, and, according to the authors, the best available data corresponds to a hypothetical planet-class super-Earths. The existence on the distant edge of the solar system rocky, several times bigger than our planet Earth was supposed before: the radius of the Earth 1.5, the orbit of 300 AU Another option is no less interesting - αCen D may be even larger objects, a brown dwarf, "transitional form" between the planets and the full-fledged stars, the orbit radius of about 20 thousand. AU

However, with the sensation worth the wait. As already mentioned, the observations is totally inadequate, and they may get less exciting explanation. In the end, it may be large, but accidentally drops out of sight of astronomers asteroid flying somewhere for Jupiter.

вторник, 8 декабря 2015 г.

In China, we discovered the graves of Confucius

In China's Henan Province discovered a large burial ground, pre-dated 771-476 years BC, according to Tass. This is the time referred to Chunqiu era in which he lived Confucius.

The complex is 200 square meters consists of 200 graves, eight burial pits, with chariots and horses, 10 kilns and 30 ash pits.

Period of Chunqiu noted the rapid development of the economy and as a result - an increase in the population of ancient China. Also, while the sharp struggle between different kingdoms.

The technical advances of the time include the transition to iron agricultural tools, the use of bulls when plowing fields and improving irrigation systems.

It is believed that Chinese philosopher Confucius was born in 551 BC and died in 479 BC. His teachings formed the basis of religious and philosophical system called Confucianism. The basic idea of ​​course is to create a harmonious society, where the individual performs a specific function, subordinate to the common good.
Have you heard of CRISPR? You may even have heard the full transcript of the term: short palindromic repeats regularly spaced bands (Clustered Regularly Interspaced Short Palindromic Repeats). Or heard. If not, you will have very soon to remember this acronym. It is a kind of cause and effect of the revolution. It is the most powerful tool for editing the genome of all that ever existed.

In fact, CRISPR allows anyone to edit the DNA of an organism, enable or disable certain features and introduces a brand new one.

In the past, editing DNA was extremely difficult, time consuming and inaccurate. CRISPR is a completely opposite: cheap, easy and accurate.

It consists of a "guide" RNA, which can detect a specific piece of DNA, and skalpelepodobnogo enzyme called CAS9, which is exactly this part of the cuts. It can also be fitted to replace the DNA portion to fill that has been cut out.

Over the past few years, there was a flurry of research CRISPR, because the scientific community is trying to determine the limits of this technique - which seem limitless - as well as hone their understanding of how it can and should be used.

This part of science seems quite fantastic, but it can affect the lives of people around the world.

Here are several options CRISPR challenge the problems of people in the coming years.

Infectious diseases

Many infectious diseases are choosing a roundabout way, getting to the person. Lyme disease, for example, is caused by bacteria that are picked up ticks Ixodida (in most cases), and after landing on mice and bite them. Then the tick bites a human, causing fatigue, illness, the need for antibiotics and a significant reduction in quality of life.

Malaria comes about as transmitted parasites loved us all: mosquitoes.

From 300 to 500 million people are infected and more than 1 million, primarily children under 5 years die of malaria each year.

With CRISPR scientists will be able to cut out the genes that allow mosquitoes carry the parasite that carries malaria, and then make sure that this change will take place through the generations, and take hold of the whole population. If successful, this will put an end to malaria, which kills millions of people and leaving families without a breadwinner, that will begin the fight against poverty.

Genetic diseases

Very many diseases and abnormalities are inherited from cystic fibrosis to Down syndrome, from sickle cell anemia to mental disorders and myopia.

Other diseases arise from random mutations in the human genome. CRISPR may be able to fix the human genome so that he will never suffer from terrible diseases that appear from time to time.

Particularly interesting prospect for the poor people, who often lack the resources to fully recover from the disease. Moreover, once the disease will be excluded from the human genome, it will be protected from future generations. It is the most effective way to protect society for a long time.

Cancer

One of the main enemies of human life, cancer affects people from all walks of life. But the main risk factor is the poor man in poverty under stress, is located in an environment with increased toxicity, which increases the chance of developing cancer. He also hardly get timely treatment and unlikely to be able to pay for it in full.

Cancer is known to be unpredictable and difficult to control. Everyone, it seems, has its own type of cancer that can challenge the procedures appropriate for the treatment of others.

With CRISPR may be possible to develop "therapeutic road map" for cancer of each individual and accurate prediction and an indication of possible mutations that may occur. In theory, this makes all of the cancer can be treated.

Agriculture and food

Food, agricultural industry and the scientific community was able to bury all the benefits of GMOs. And why do they insist on such a strange name - genetically modified organisms - I'll never know.

When tested, and correct information in the beginning of the fall roundup, people were filled with fear of GMOs; It left too little room for important information that could affect people.

GMOs do not present any risk to humans (this is, in fact, an accelerated form of natural selection), and will be critical in the current and future fight against food insecurity and climate change.

But while they are fighting for public recognition.

Some scientists believe that the CRISPR may be a more acceptable concept, but there are fears: it is still a complicated process, which may alarm the public.

CRISPR will not include foreign DNA in crops, but instead modifies the existing genomes, increasing their resistance to drought, bad weather, extreme heat and other conditions, as well as increase the volume of receiving nutrients.

Soybeans, potatoes, and rice has been improved. Scientists will also be able to remove allergens from food, such as peanuts. Such achievements to strengthen the control of food around the world, especially to help people living in poor conditions.

Saving trees

Trees - the best there is in the world. They allow us to live, provide us with food and generally causing pleasant emotions. However, people cut down trees billions pests also significantly hinder them. For example, higher temperatures and longer warm seasons in North America allows pine beetles to flourish. These beetles eat the pine woods throughout the western United States and Canada.

CRISPR allow scientists to eliminate certain genes that attract pests, and enable others to protect them.

Organ transplant

Last week, I ate pork. It was delicious. Like many other people, I have no problems with the absorption of pork (not every day, of course). But what if the pork is to be a part of me? Would I kind of pig?

Scientists have long wanted to use pig bodies to put an end to the eternal deficit of human organs. Usually, a person has to wait a long time until it receives available to the transplant organ.

Pig organs are similar to human, but the DNA of pigs teeming with retroviruses that infect humans after transplantation. CRISPR allow scientists to remove these viruses and, theoretically, to open the door to an abundance of safety. This can significantly reduce the black market, which operates thanks to the people living in poverty.

Antibiotics

Powerful bacteria - a terrible thing. Fears postantibioticski era only grow when the antibiotics will not be able to save us from bacterial infections.

The prevalence of superbugs is increasing every year, and the prospect of the development of more powerful antibiotics remains elusive distant. But CRISPR can greatly help the fight against antibiotic-resistant bacteria.

Water purification

783 million people worldwide do not have access to clean water. Most people get the disease from contaminated water, which can kill or leave them in a terrible state of health.

CRISPR can help in the development of enzymes that can effectively and cheaply purify water. Dissolve the tablet in water and make it clean - what better way to help poor people?

Biofuels

Humanity is desperately looking for an alternative to fossil fuels. Biofuels are considered to be ineffective: for its use required a large area, it is difficult to extract, process, and it still pollutes the atmosphere. But scientists believe that the CRISPR can significantly improve the technology of biofuels.

These are just some of the many possible uses CRISPR. The full range of possibilities is very, very great. Of course, you need to approach it is not without caution. The ethics of genome editing has to be carefully worked out at the highest level. I'm not exactly been thrilled with the fundamental change in the human genome. The idea of ​​a significant change in the human condition scares me. But CRISPR seems tool that can help us to overcome poverty and to overcome the abyss of global inequality. And it is worth to try.

среда, 2 декабря 2015 г.

Scientists have tried to find differences between male and female brains


Scientists have found out, there is a difference in the device of male and female representatives of the brain and why a strong and beautiful half of humanity in many ways behave.


The results of a large study, the work of neuroscientists from Israel, Germany, Switzerland and the United States, were published in the edition of the Proceedings of the National Academy of Sciences. Scientists have set ourselves the task: to find out whether there is a "male" and "female" brain? It is a physiological, evolutionary and chemical characteristics. It turned out that the fundamental differences in the apparatus of the brain in men and women do not. Thus, the similarity between the two sexes is actually stronger than previously thought.

Used data from magnetic resonance imaging of individual sections of the brain in 1400 men and women. Scientists, in particular, have attempted to estimate the volume of gray matter in certain areas, and compare them. The focus was sexual dimorphism - anatomical differences between males and females of the same species. In the case of the human brain, such a phenomenon may be due to evolution. Men, for example, were able to get food, and it could affect some features of the device of the brain. These "men" of the structure, of course, be present in only one sex.

To the surprise of scientists, no purely "female" or "male" brain structures were found. Experts have compared the human brain with a mosaic of the different features present in one or the other sex. Up to 53% of all of the samples had a "female" and a "male" portion. A maximum of only 8% could be talking about a purely "male" or purely "female" structure.

It is the differences in the brain sometimes explained device "sanity male" and "female emotionality." A new study in the meantime tend to think about the impact of culture and education. One of the study's authors Daphne Joel (Daphna Joel) is confident that the human brain does not characteristic of sexual dimorphism, and the differences in the behavior of men and women were not caused by certain decisions of evolution. Now Joel emphasizes the need for an integrated approach to the study of gender differences.

It was previously shown that a woman's brain in male average less by volume, but this does not affect the level of human intelligence. In addition, it is believed that with age the brain decreases faster man.

Perhaps not everyone agrees with the conclusions of Daphne Joel. For example, a scientist from the US Madhura Ingalhalikar (Madhura Ingalhalikar) and her colleagues believe that certain areas of the brain in men and women in different ways to communicate with each other, and similar differences are very important. Scientists curled that men are characterized by a close connection of front and rear sections of the hemisphere, and for women is visible well-developed hemispheric relationship.
In the fight with a deadly staphylococcus scientists helped oil


Australian scientists on the basis of linseed oil have developed the world's first organic antimicrobial agent capable of killing deadly bacteria - Staphylococcus aureus.

Staphylococcus aureus is the causative agent of many diseases - from skin infections to pneumonia and meningitis. In the United States recorded more than 100 thousand. Cases of infection with this bacterium, many of which are fatal. Staphylococcus aureus has become a problem for Australia. According to "Xinhua", in 2013-2014 with him was hospitalized more than 1.5 thousand. Australians. About 20% of infected died within 30 days.

Scientists used to combat bacteria linseed oil contains α-linolenic acid, also known as omega-3. In medicine, it is used widely, including reduced risk of heart disease and cancer prevention. Funds based on linseed oil has been developed by Australian startup Kayban project supported by the Australian community Scientific and Industrial Research (CSIRO). Developers intend to organize production in Melbourne and includes a rich alpha-linolenic acid in the oil lotions and cleanser.

воскресенье, 22 ноября 2015 г.

Engines rockets will be assembled in the augmented reality glasses


Manufacturer of engines for rockets "Proton-M" in 2016 will collect products using augmented reality glasses. The technology will create a three-dimensional visualization of the object, simplifying the assembly.

According to the press service of the Russian Federal Space Agency, the first augmented reality goggles public joint stock company "Proton-PM" and the Regional Engineering Centre were presented at the Perm engineering and technical forum in November 2015. According to the developers of the technology, it will allow to obtain a three-dimensional visualization of the assembly process complex components and assemblies of the engine. Workers on the assembly as a result will be able to see how, in what sequence, and by what tools you need to perform a task. "Introduction of interactive technology assembly processes will significantly change and supplement the existing system of design and technological preparation. And as a result, we significantly reduce the loss of time and reduce the cost of new product development process, "- he leads the agency words of Director General of PJSC" Proton-PM "Dmitry Schenyatskogo.

Recall, the company "Proton-PM" is specialized in the manufacture of liquid rocket engines RD-276, used as a power plant the first stage rocket heavy class "Proton-M". Another focus of the Company is the production of components and assemblies new generation engine RD-191 for a family of launch vehicles "Angara".

Perm development was inspired by the latest advances gaming industry, said RIA "Novosti". In contrast to the already usual virtual reality immersion in reality augmented people still see the surrounding reality, over which "accumulate" additional objects. "In the case of these points in the interests of the military-industrial complex it can be visual commands, steps orienting calculations of military equipment or engineering work", - adds the news.

Augmented reality is now quite closely integrated with the consumer market. For example, on the eve of the Israeli company Everysight, based Elbit Systems, introduced the Raptor glasses for cyclists, which were used technology in the helmet of the pilot combat aircraft. Externally, the glasses do not differ from ordinary bicycle, but, except for sun protection, indicate its owner for more information about the speed of movement, his health, and so on. D.
Genetically-modified salmon allowed to bring to the table


Office of Food Inspection and Drug Administration (FDA) has allowed for the first time in the history of eating genetically modified meat. Experts recognized safe salmon AquAdvantage, grown through the introduction of foreign DNA.

According to a press release, FDA, following a comprehensive study of the Office for the Control Food and Drug Administration approved the eating salmon AquAdvantage. FDA found no differences in nutritional and biological properties of GMO salmon compared with the conventional. DNA fragment, introduce the fish to accelerate growth, it does not cause harm. But, thanks to him, the fish is gaining weight is 2-3 times faster than conventional salmon, and the need for its dilution to 25% less feed.

«FDA carefully analyzed information on salmon AquAdvantage, presented AquaBounty. Management has determined that the fish meets the regulatory requirements, and eating food from the fish is safe, "- said the director of the FDA Center for Veterinary Medicine Bernadette Dunham.

AquAdvantage Salmon is a genetically modified form of conventional Atlantic salmon, designed and developed by the corporation AquaBounty Technologies. The media reported that growth hormone for it was borrowed from the largest of the Pacific salmon - chinook. To maintain the activity of the hormone used the genetic material of the American eelpout - as the largest representative of his family.

Products of genetically modified salmon produces only one US company AquaBounty Technologies at two plants in Canada and Panama. The fish will be grown in inland waters in Canada. In reservoirs mounted numerous barriers to prevent leakage of fish and caviar. However, as noted in the press release, even if individuals escape AquAdvantage can not be reproduced at will, or interbreed with ocean population - they are sterile. On approval of the FDA application from the company AquaBounty Technologies, which produces GMO fish, it was 12 years since 2003. The development of this type of fish the company began in 1989.

The FDA also announced two instructions for labeling products with GMO ingredients. One guide describes the rules on labeling of genetically modified plant products, the second - is devoted entirely to AquAdvantage salmon and affordable products from it, including canned. Office of Food Inspection and Drug Administration takes public comments on the labeling of products containing GMOs, within 60 days, starting from November 23.
ESA satellite is studying the health of terrestrial plants by their glow

The European Space Agency is planning to monitor the health of the global vegetation, monitor its condition from space via satellite FLEX. The sensors of the satellite will "read" the information about the flora of the Earth imperceptible to the human eye glow, which produces the plant during the life processes.
According to the European Space Agency (ESA), during the process of converting sunlight and carbon dioxide in the atmosphere in energy plants emit a faint glow. Ordinary eye did not see, but from outer space, using special equipment can be. Glow can tell whether the plant is healthy, whether it is experiencing stress, and the state of the earth's flora in general. To read the data, ESA plans to launch in 2022, the year the eighth satellite to study the Earth, which will be called "Researcher radiation» (Fluorescence Explorer, or abbreviated as FLEX).
The European Space Agency hopes that the satellite will help scientists better understand the interactions between plants and the atmosphere, photosynthesis and its impact. "The conversion of carbon dioxide and water with the help of light in organic matter is one of the fundamental processes taking place in the world", - the ESA.
It is planned that the FLEX will orbit in tandem with research satellites for program Copernicus Sentinel-3. Recall, the first satellite "All» (Sentinel-1A) of the "Copernicus" was successfully launched last spring. The purpose of the project - the Global Monitoring for Environment and Security. Samu ESA program called "the second most important initiative of the European Union after the global navigation system Galileo». In general, the agency plans to create a network of satellites, collecting a vast array of different data on the state of the Earth. All these indicators after treatment and comparison will have to give a full picture of the changes taking place on the planet. In particular, Sentinel-3 can measure the colors of the earth and the ocean, the surface temperature of the planet, as well as to study the surface topography of the continents and ice-covered regions of the Arctic and Antarctic.
Thermal and optical sensors Sentinel-3 satellite FLEX will assist in the collection of data, making a comprehensive package of measurements. «FLEX will allow us to obtain new information on plant productivity, which we can use to support the agricultural sector, the development of the bioeconomy and understanding of the ecosystem as a whole", - said General Director of ESA Jan Werner.
Scientists have proved that the "Hobbits" Indonesia is a separate species


We found evidence that the Indonesian "Hobbit" is a separate species, not degenerates, the Cro-Magnons. This is the conclusion of scientists pushed the analysis of teeth beings.

The remains of Homo floresiensis (Homo floresiensis) was found in 2003 on the Indonesian island of Flores in the Liang Bua cave. It was found several skeletons whose age was 17-95 thousand. Years. In the media these creatures once called "The Hobbit": the fact that their growth was only one meter. Although Homo floresiensis brain volume was very small, being able to handle the stone tools.

Time passed, and the new fossils of Homo floresiensis was found. Therefore, some experts said that this is a Cro-Magnon man with congenital abnormalities. At various times, they have pointed to such violations like microcephaly, Laron syndrome, cretinism, and others. But now the Japanese Yosuke Kaifu (Yousuke Kaifu), together with other scientists found strong evidence of the veracity of the theory of "The Hobbit" as a separate form. We studied the structure of their teeth, and then compare them with the teeth Homo habilis and Homo sapiens.

The main difference between the teeth "hobbit" was their relative simplicity compared with samples of modern man. Canine premolar teeth were similar to the inhabitants of the late Pleistocene. In general, the unit of teeth "Hobbits" had much in common with the device Homo erectus. Therefore, they can hardly be considered as Cro-Magnon.

But where were themselves stunted strange creatures? Kaifu and other scientists has placed emphasis on the so-called the phenomenon of "insular dwarfism". Before us, perhaps descendants of Homo erectus, the size of which decreased because of the life conditions of island isolation.

Hobbits - that's fantasy works of John. R. R. Tolkien called the people whose representatives had a growth of about 90 cm. According to the book, these creatures are almost never left their land. There were three ancient tribe, later mixed in one large.

Anthropologist Stanislav Drobyshevskiy, incidentally, believes that "The Hobbit" from the island of Flores could well serve as a prototype of the creatures from the works of Tolkien. For information about the extinct about 12 thousand. Years ago, "dwarfs" could be transmitted in myths and legends. However, with the same success the prototype imaginary creatures might be some small monkeys.

Himself Yosuke Kaifu said that scientists expect to unity on the question of origin of Homo floresiensis is not necessary even now, after a new study. In due time, by the way, he argued that Homo floresiensis - this is not a separate species. So that a new round of "confrontation" in the scientific world can still take place.
  The technology of energy transfer via WiFi



The spread of wireless data transmission made a small revolution in our lives. Now we connect to the network everywhere, and stay in touch almost always, and on the mass of clutter escaped. I stayed next bastion - a charge - and it looks like he is about to collapse. Engineers of the University of Washington reported the development of technology PoWiFi, which allows you to pass through the air, and even energy.

"We were able to show for the first time that you can use WiFi to power sensors and other devices, - says one of the authors of development WAYS Talley (Vamsi Talla). - A system that can work in parallel and as a WiFi-router and as a source of power; wireless signal quality during charging wirelessly not impaired. " Present technology is planned in December, 2015 at the conference CoNEXT in Germany.

Unfortunately, for charging smartphones or laptops question. PoWiFi intended for devices that consume very little power - a level comparable to the peak power capacity of radio waves WiFi-signal. However, this includes not only the abstract "sensors", but it is clear to all bracelets and fitness trackers webcam.

For this purpose an ordinary WiFi-router is upgraded so that from time to time he sends the data packets are not, and energy, using unoccupied information transmission channels. Made prototype proved effective enough to without problems (without wires) to feed a small video camera VGA to a distance of 5 m. A charging fitness tracker Jawbone Up24 41% it took about 2.5 hours. At the same time the quality of the network channel Communication is not affected.

It is hoped that the authors will find a way to improve the development and transfer of energy is more - so that was enough even for a smartphone.

суббота, 14 ноября 2015 г.

We prove the status of Pluto as a dwarf planet

Astronomer Jean-Luc Margot of the United States proposed a quantitative criterion, which allows you to check the status of a planet from a celestial body (such as Pluto), which is located around its star. The results of their research published in the author resource arXiv.org, and brief them can be found at the University of California in Los Angeles.

To determine the status of a celestial body is sufficient knowledge of three parameters: the mass of the star, the planet's mass and its period of revolution around the sun. Margot method uses a record of how long the celestial body clears its orbit around the parent star and is applicable to extrasolar planets.

Currently, about 5,000 of these objects it allows 99 percent classified as a planet. To elucidate the nature of other bodies of the scientists is not enough data. In our solar system approach Margot reserves Ceres, Pluto and Eris dwarf planet status.

"The gap between the planets and neplanetami strikes. The sharp difference suggests a fundamental difference in the way these bodies were formed, and the fact of their classification shows something deeper about the nature ", - he shared his impressions planetary Margot.

Determination of the planet, proposed by the International Astronomical Union (IAU), is applicable only to the celestial bodies in the solar system. According to him, the planet is considered rounded massive body, clear the neighborhood of its orbit by a large number of smaller bodies.

Total in the solar system, the MAC recognizes the existence of the six dwarf planets. One of them (Ceres) is located in the asteroid belt between the orbits of Mars and Jupiter, while others, like Pluto - orbit beyond Neptune. The largest of them is Pluto.

It is the decision of the MAC in 2006, it ceased to be a planet because it does not satisfy one of its defining criteria (dominance in the space of its orbit). Total in the solar system, according to MAC, there are eight planets. The biggest and most massive of them - Jupiter.
Scientists: people began to use honey nine thousand years ago,

The researchers found that for the first time representatives of the human race began to use honey in food-nine thousand years ago. Experts have concluded, based on the analysis of six thousand potsherds era of the Ice Age, when people began to develop sedentary.

Scientists have determined the exact time when the ancient representatives of the human race have found favor and taste of honey. It turns out that eating "royal treat" people began to use nine thousand years ago. These conclusions are made experts, referring to the results of the analysis of six thousand potsherds era of the Ice Age, when people began to develop sedentary.

According to scientists, the first time began to use wax ancient people in Turkey, then the range has expanded in the direction of the islands of the Balkan and central Europe. In the end, there was a bee on the territory of Denmark. Experts suggest that the wax in ancient times was used for bonding of arrows, as well as pottery.
Scientists have discovered the most distant objects in the solar system


Scientists have discovered the most distant objects in the solar system. Dwarf planet named V774104 and moves it at an unusual orbit, writes Science Mag.
Publication Science Mag published a report astrophysicists Washington Carnegie Institute for Science in the opening of a new solar system object. Size Outer body title V774104, ranges from 500 to 1000 km in cross section. Speaking at a meeting of the American Astronomical Society, astrophysicist Scott Sheppard said that currently V774104 located at 15.4 billion kilometers from the sun. V774104 distance from the Sun is equal to three remote Pluto from the sun in our solar system, the researchers explain.
A dwarf planet moves in a strange orbit that may result from exposure to the forces of attraction of rogue planets or nearby stars. Scientists do not exclude adherence to the discovery of the body of extreme class of objects that are only formed in the solar system. V774104 classification depends on further progress in space. In the case of approach to the sun it will carry to the solar system. If the newly detected object will move in the opposite direction, it will assign to the icy worlds of the Oort cloud, which are now a trans-Neptunian objects Sedna and 2012 VP113.

среда, 11 ноября 2015 г.

     Designed battery produces electricity

US scientists have created a hybrid battery, which is used as a light and thermal radiation from the sun to generate electricity. In a device combined photoelectric cell and polymeric films.

Converted unused film solar battery light into heat and the heat is then converted into electricity. According to the creators of the battery, it generates 5 times more electricity compared with other hybrid devices. Modern solar cells have higher efficiency compared with earlier developments, but it is still quite low. To increase the amount of electricity generated by solar energy, various methods are used. One of them - the creation of hybrid batteries of different materials capable of capturing more solar light and heat.

American Chemical Society reports that the device created by the imposition of solar panels on the polymer film. In response to light, it heats up. Beneath it is a thin film pyroelectric and thermoelectric device - each of these elements makes the heat in the light. The effectiveness of all components that work together to exceed 20% efficiency of the one solar battery. Given the fact that the indicator most commercially available offers less than 20%, it is possible to speak about a gain in half. Of course, the commercialization of the invention require a lot of time.
                   7 facts about beer

Fact 1. Beer harmful than moonshine vodka, as in the fermentation process are stored toxic compounds (aldehydes, methanol, esters ...), which is 10-100 times more than in the vodka produced from alcohol highest purification.

Fact 2. Beer alcoholism - a serious psychological disorder. For it is very typical, so-called anosognosia, that is a complete denial of the disease. For the use of beer set table is not needed, or even if a formal occasion for drinking: you can drink one can a company can be at home, it is possible in the street, you can sit, but you can on the fly, etc. Therefore, from the standpoint of Addiction, beer drinking - it's heavy, difficult to treat alcoholism option.

Fact 3. Beer - is the greatest deception of all peoples. One bottle of beer is equivalent to 50-100 grams of vodka, depending on the strength. Drinking 5-6 beers, you can get a dose of ethanol, equal to a bottle of vodka. But psychologically you're protected: drinking a bottle of vodka a day - an obvious alcoholic and drink 2-3 liters of beer - "ordinary" people, and sometimes gives the impression of a successful and happy. In addition, statistics show that consumption of vodka grows with the consumption of beer. No wonder there is a catch phrase - "Vodka without beer - money down the drain."

Fact 4. Most people recall that in the beginning they did not like the taste of beer, they soon found it nasty and bitter. However, the drink was seen as a symbol of adulthood. What would be helpful and healing properties attributed to either drunk, his pitches, being carcinogens, will inevitably make their work of destruction, in particular, contribute to the development of cancer of the digestive tract.

Fact 5. Many believe that, using beer, they meet their daily requirement in almost all the necessary elements and vitamins. Vitamins act mainly into beer malt, rich in vitamins of group B. However, in the process of brewing beer concentration of vitamins inevitably decreases, and as a result becomes negligible. To ensure that 100% of the daily requirement for this vitamin is necessary to drink 10 liters of beer a day.

Fact 6. The beer washes away from the body's proteins, fats, carbohydrates and minerals, especially potassium, magnesium and vitamin C. In potassium deficiency occurs disruptions of cardiac rhythm, there is dryness of the skin, pain in the calves, weakness in the legs. Magnesium deficiency is dangerous because it changes mood, the person becomes irritable, tearful, poor sleep. With the leaching of vitamin C reduced immunity, hypoxia of the brain suffers intelligence, are more common colds. Therefore, the benefits of beer for the kidneys no voice and can not be. Kidneys have to pass through itself enormous amounts of beer and clean it. The benefits we can not go at all.

Fact 7. Some people think that beer is good for potency and generally helps in communicating with the other sex. In fact, reality is quite different. Because of the toxic effect on the adrenal glands, alcohol blocks the production of androgens in them, causing the libido. Therefore, the first payment for the abuse of beer is to reduce sexual desire. In men, the abuse of beer leads to irreversible degenerative changes in the spermatic cords. As a result, the body begins to secrete a substance inhibits the production of male sex hormone testosterone, which further leads to a change in the appearance of men: breast cancer grow, becomes wider pelvis. Women who consume beer, increases the likelihood of cancer, and if a nursing mother, the child may be epileptic seizures. Also, the women become rougher voice, and there are so-called "beer mustache."

вторник, 10 ноября 2015 г.

As the writing of texts affects the brain


Writing texts, especially by hand, improves the functioning of the brain, intelligence and memory pumps, helping to solve problems and find new ideas. Why the letter so useful and how to get all these benefits, will cover in this article.

How do you feel after a couple of hours spent writing the text, articles, a new chapter? If you feel relaxed, full of energy, or even more inspired than at the beginning, you are not alone. Many people argue that an effect on how they feel, how to think and how to look at different things. Indeed, writing texts affects the brain much more than we think. Let's see how.

Letter improves memory.

You ever been so that you record list or phone number, and when you need to call or do something, it turns out that you remember this great and needs no records? It is not by accident. When you write something, zadeystvuete group of cells in the temporal lobe, known as the reticular activating system. As a result, your brain increases the concentration on the recording media.

Cliche stop the development.

Have you ever read the text, consisting almost entirely of cliches? At such times it seems that the brain really switched off. Well, there is some truth. Reading and writing clichés reduce the chances of your brain, eliminating the stimulation of visual elements and metaphors. So try to avoid clichés when writing.

Keeping a diary improves health.

Many of us keep a diary to record everything that happened during the day, throw on paper their emotions and feelings and keep the ideas for the future. We know that keeping a journal helps to quickly cope with the unpleasant events, go through the stress and disappointment, but actually benefits diary is much greater.

Researchers from the University of Texas found that keeping a diary enhances production of T-lymphocytes. It is the immune cells that help the body fight infections.

There is also scientific evidence that keeping a journal develops the left hemisphere of the brain. Okay, but what about the right hemisphere is responsible for creativity? When the left hemisphere is busy with work, the right hemisphere is activated and creates something creative, fantastic and sensual.

Effect of letters on intelligence.

How can we talk about the letter and the brain, and not to mention that this activity makes you smarter. Writing texts increases the clarity of mind like never make verbal communication.

Writing text on any topic requires a clear understanding than talk about it. Before you write something, you need to think, organize thoughts and only then turn carefully processed information in the text.

If you are a writer, you probably impressive vocabulary. You can thank your for this occupation. In the process of writing, we begin to notice the words and phrases used in our texts again and again. We understand that it will be boring not only for our readers, but also for ourselves. And it makes us look for new words and expressions.

Remove the keyboard.

How many notebooks, albums and notebooks on your desk right now? How many pens and pencils? If a lot, then you're probably a fan of stationery.

And this is very good. The physical act of writing - writing pen on paper - activates your brain in three different ways. You use fine motor skills to take a pen and write, your brain works, recognizing the lines and shapes that create each letter, and you are aware of every word, formed in the brain.

So if you can not go past the Department of office supplies, do not worry. From their attachment to the writing of the hand, you get much more than your friends, have forgotten what a pen.

Write to improve their ability to write texts.

Everyone knows that reading increases vocabulary and helps to improve writing style. This is so, but still the best thing that can make a person who wants to pump the skill of writing - write as often as possible. The reason is simple.

The emergence of the idea makes the writing, and the writing stimulates the emergence of ideas.

Think about anything. How often do you get ideas for new texts and works while you were working on the old? Ideas do not always refer to the project you are working on now, but the process of writing stimulates the brain, due to which it gives rise to a variety of ideas.

There is a problem? Write about it.

To solve the problem, it is necessary to understand it, to investigate the details and find a solution. What could be more useful in this case, you write about it?

Description of the problem on paper helps you fully understand that with which you are dealing. A lot of notes to help explore and delve into the details of the problem.

And finally, is there a better way to find a solution, you record the results of brainstorming to see all the ideas on the paper in front of him?

Moreover, solving problems through their writing, you not only increase your chances of finding a solution now, but also develop their ability to solve problems in the future.
The largest planet in the universe can remain invisible to existing methods of observation


From well-known today about 2 thousand. Most exoplanets are large gas giants similar to our Jupiter and Saturn. But the greatest of these may be unavailable for normal observations.

The giant planets are easier to detect by their influence on the movement of the star or its luminosity in those moments when the planet passes between us and her. Only the great efforts, astronomers have learned to detect planets smaller, the size of which is comparable with the Earth. However, the largest of the planets whose mass is ten or more times the mass of Jupiter, may be hiding from our telescopes.

Working in the US astrophysicists Zhobin Dong (Ruobing Dong) and Chzhaohuan Zhu (Zhaohuan Zhu) came up with the hypothesis that giant planets can hold around him quite dense disk rotating matter - both young stars. However, unlike the stars, the planets do not emit a lot of energy, and if the gas-dust disk of stars are heated and become visible, then such planets, they remain cold and almost indistinguishable, hiding behind an entire large planet.

However, the simulation allowed Dong and Zhu predicted that gravity and the motion of particles in the gas and dust cloud that sooner or later, will give it a special helical structure. And if it will be "highlighted" nearby stars, some features of this structure, in principle, could be considered with the help of our instruments. Indeed, search for such structures in the existing observational data, scientists have found several examples that could be evidence of the existence of such enormous planets.
Fleeing from the attacks, tropical fish call on the assistance of other predators


Caught between the "Predator" and "Alien", is sometimes enough to duck - and they will understand each other. This approach uses a clever and chromis fish-inhabiting coral oases Pacific.

In case of injury, many fish - from salmon to sea cucumbers - emit certain chemicals. However, the appointment of these compounds is still controversial. Some scientists believe that they can serve as a warning signal for the tribesmen, the other - to help disinfect wounds. Recently, however, ichthyologists Una Lonshtedt (Oona Lonnstedt) and Mark McCormick (Mark McCormick) put forward a completely new and unexpected explanation. According to scientists, this signal can attract other predators - so that the unfortunate victim has a chance to escape deftly while they are confused by the unexpected meeting with each other.

The authors were able to show that the predatory Pseudochromis fuscus really attracted to the smell of fish, chromis injured even more than the smell of large and healthy individuals. This behavior has been demonstrated in the laboratory and in the wild - in the latter case to the action quickly arrived and other predators, which are meeting each other almost always ended with a scuffle.

Intrigued by this, the researchers repeated the experiment with different predators in the tank, watching the scene. And indeed, if a wounded chromis time to multiple predators, they began to fight with each other, but the victim managed to escape much more than if she met with any of them alone. The chances of saving at the same time was estimated at as much as 40% - against several percent at a meeting with the persecutor "eye to eye".
Novice researchers divided the millions alternative Nobel Prize


On Sunday, the US Founders Award Breakthrough Prize Winners in mathematics, biology and physics. Scientists rewarded a sum of three million dollars.

According to Reuters, Science Prize Breakthrough Prize («Award for Breakthrough") established by Russian billionaire Yuri Milner, founder of Facebook Mark Zuckerberg, co-founder of Google Sergey Brin, as well as biotechnology and co-founder of 23andMe Anne Voyzhitski (former wife of Sergey Brin). Unlike the Nobel Prize awarded Breakthrough Prizes to scientists, who are just beginning their careers in science. Also Prize differs from the "Nobel Prize" of the financial component: Scientists distribute three million dollars, while the award of the Nobel Prize does not exceed $ 1.2 million.

In physics the Grand Prix went to one thousand. 370 laureates. Three million divided between the scientists who worked on the project of neutrino oscillations (the possibility of converting from one type of neutrino into another, pointing to their non-zero mass). Recall Nobel Prize in Physics in 2015 for experimental confirmation of neutrino oscillations obtained Takaaki Kadzita Arthur MacDonald. Two-thirds of the prize will receive the leaders of the seven teams of scientists, the remaining million will be shared by the rest (about $ 700 for each physics). "I would give each of them three million, but so far it does not pull", - joked Yuri Milner.

A few awards found their owners in the field of biology. Premiums received scholars specializing in various fields - from optogenetics to the genome sequencing of ancient people (paleogenetics). It clarifies the RIA "Novosti", talking about the American molecular biologist Carl Deyserrote from Stanford University, and Ed Boyden of MIT, Helen Hobbs of the University of Texas, awarded for the discovery of variations in genes responsible for the level and distribution of cholesterol and other fats through the body and John Hardy - for the discovery of mutations in APP, leading to the development of Alzheimer's disease.

In the field of mathematics prize was one person. Breakthrough Prize Laureate was the American scientist Ian Egol the University of California. According to the founders of the award, he made a significant contribution to the study of topology of multidimensional spaces and the theory of groups.

Award Breakthrough Prize - not the only project of Yuri Milner in science. Earlier philanthropist said he was willing to spend $ 100 million on the search for extraterrestrial life, studying cosmic radio and light signals.
What feeds the tendency of society to mysticism?


Why psychics, fortune-tellers and astrologers do not depart from the pages of newspapers and TV screens? Teaching of homeopathy or torsion fields claim to be scientific, and supporters of traditional religions insist that creationism is taught on a par with the theory of evolution, and require the introduction of religious education in schools. However, school education provides familiarity with the scientific picture of the world, therefore, if the school will be taught the basics of religion or religious culture from the perspective of the faithful, it is reasonable and fair balance of scientific knowledge about the religion.

The mystical beliefs prevalent around the world and are filled with its diversity. Someone does not eat pork, someone prays to summon rain, someone symbolically eating the flesh of their God, believes in flying saucers, clairvoyance, horoscopes or bad omens. It is no secret that many people tend to take these ideas for granted, without requiring stringent evidence and studies, based on their own intuition and feelings. Another group of people speculated: where do these ideas about the world?

Scientific Burhus Skinner studied pigeons. At one time he worked for the US Navy guided missile system with the help of these birds, but the project was soon abandoned due to the advent of more advanced developments. And few were willing to entrust rocket pigeon, despite the success of the test. In addition, Skinner spent a number of interesting behavioral research. He put the pigeons in a cage with a trough in which from time to time, regardless of what the birds fell out food. In this case pigeons elaborated peculiar rituals: one blue run circles counter-clockwise, the other banging his head against the corner of the cell, the fourth and the fifth made regular rotation of the head. It turned out that the pigeons are beginning more often than usual to repeat the movement, which they by coincidence, made at the time of cooking. This phenomenon has been called "pigeon prejudice" and is an example of how the animal world there is an intuitive link between two unconnected events: hit his head against the wall and getting food. Examples of this kind of prejudice in humans will establish the relationship between the black cat that crossed the road, and misfortune, shaman dance and autumn rain, tarot cards and receiving the award at work, between the adoption of a homeopathic remedy and cure of the disease. Of course, complex things such as religion, are not primitive superstition, but human thought is much harder than thinking of a dove.

Do mentally ill people prejudices can take extreme forms. Neurophysiologist Vilaynur Ramachandran tells how one psychiatric clinic showed him two patients. One of them went out to meet a dawn and stood at the window until the evening every day, arguing that it moves the sun across the sky. The second power of thought controlled the flow of moving cars on the road at the hospital, "examining" emerging cork. They saw the changes in the world and mistakenly consider them as a consequence of their thought processes, sincerely believed in it. Professor Ramachandran brings another interesting example of absurd faith in man, the patient anosognosia. The patient, being of sound mind, capable without problems to discuss any topic, to think logically, to play chess, but completely denies the paralysis of his left arm caused by damage to the brain. "It's not my hand; it's big and hairy, so it is the hand of my father "- may declare a patient. Or: "The hand is not paralyzed, it is quite normal." When the patient is asked to touch the paralyzed left hand to the right shoulder, he did not hesitate to take his ailing arm healthy right hand and follow the instructions: someone smart in his subconscious realizes that the arm is paralyzed, but people consciously deny the obvious facts, believes that the hand in order. This is an extreme, but perhaps, and mental health is not so far from these mistakes in everyday life?

If serious violations of the brain give rise to absurd beliefs and convictions, could it be that the usual tendency to believe is related to the features of the device of the brain? Could these symptoms be inherited? The first answers were obtained through research on twins. It was found that identical twins (genetically identical), brought up individually, are much more similar in their relation to faith in God than ordinary brothers and sisters. If the last into adulthood often differ in the tendency to believe in the religious phenomenon, adult identical twins is approximately two times more likely to retain the same views. This was the first evidence that "spirituality" is inherited. He was soon found and the corresponding gene. In 2004, a scientist Dean Hammer published a book "God Gene: How Faith is fixed in our genes," which describes the unique find. The gene encoding the protein VMAT2, is found in several variants (alleles) in the human population and, according to the study, it is associated with a tendency to believe that does not require evidence. VMAT2 - a protein which is the major transporter of neurotransmitters, such as dopamine, serotonin and histamine. These substances provide communication between brain cells. The fact that "God gene" is associated with the transport of these substances, it is not surprising: the impact on our perception and emotional state is extremely large. The idea of ​​"God gene" has been adopted by theologians hostility as an attempt to reduce the religious perception of the world to the banal features of the functioning of the human body, but nothing this opening (as well as any scientific discoveries) to the question "Is there a God?" Does not have. It was just that people are very religious in physiological reasons related to their genetic information.

Before going any further, we need to touch upon another disease - epilepsy. In ancient times it was believed that epileptics in contact with the higher powers, for example, with God or, conversely, that they possessed by the devil or an evil spirit. In some tribes became epileptic shamans often be seen as predictors of the future, sometimes feared and held in isolation. One form of epilepsy with the excitation source in the temporal lobes of the cerebral hemispheres leads to strange mystical experience: a person during and after seizures may appear that he learned all the secrets of the universe, he saw "infinity in a grain of sand," or heard the voice of the Creator. After such attacks people are particularly religious. The above-mentioned Professor Ramachandran says: different objects evoke the emotions of people of varying strength. Type of dangerous animals or beautiful members of the opposite sex excites the man, while a bottle of water or a stone on the road do not have the emotional significance for ordinary people. It is very important for an adequate perception of the world. It is possible to hypothesize what if because of seizures a person all begins to seem emotionally meaningful to him and the only explanation for this strange feeling becomes divine intervention?

Experiments have shown that the hypothesis is wrong: the risk of epilepsy-ons, but everyday objects such as a table or a chair, they still do not care. Moreover, unlike conventional men epileptics such extremely weakly excite sexual imagery. But striking proved another fact: as soon as epileptic showed the icon, the cross, the word "God", a star or other mystical symbol, the polygraph ("lie detector"), which measures the emotional state, rolls over, and in the test it was possible to detect increased activity of certain groups of nerve cells. It turned out that a group of cells in the amygdala, the approaches to the emotional center of the brain - the limbic system, associated religious visions epileptics, and their hypersensitive reaction to the mystical symbols. It amygdala is associated with the definition of the emotional significance of the observed objects. Some resourceful supporters of religion, do not want to keep up with scientific progress, this area of ​​the brain compared to the "antenna" that God has placed in the people to communicate with them. According to Professor Ramachandran, how this is arranged at the center of an individual may depend on his tendency to believe in ghosts, clairvoyance, or God.

But that's not all. The most severe forms of epilepsy is sometimes treated with surgery, during which cut the corpus callosum - bridge connecting the left and right hemispheres of the brain. For the study of people with disparate hemispheres in 1981, Roger Sperry was awarded the Nobel Prize. In a series of complex experiments, during which it was possible to communicate with the hemispheres separately, it was found that as a result of the operation, each hemisphere has its own personality, to the point that one hemisphere may be a believer in God, and the other not. This person does not have a real split personality, he is fully responsible for his actions, behaves like a man, not as two, adequately perceive themselves and the world. Critics argue that the whole concept is wrong: one hemisphere, namely voice, has consciousness (soul), and another - "zombies", but it is unclear on what basis they make such a conclusion: nonverbal hemisphere ability to think and communicate with the experimenter par with speech by selecting answers to questions finger (to say it does not). These experiments cover topics that previously belonged more to the sphere of religion and philosophy, than to the natural sciences: whether a scalpel to cut in half consciousness? In addition, there is a big theological problem: if a man two personalities, that will get you both of his soul to heaven or it may be that the soul of the believer will go to heaven hemisphere, and the soul is not an atheist?

Therefore, some scientists have come to the conclusion that the tendency to religion, mysticism is largely connected with the feature of the functioning of the brain, which in turn is determined by genetic factors by means of certain neurotransmitters. This, perhaps, is a fundamental contradiction between people with rational and irrational type of thinking: they see the world differently due to physiological differences in the brain and, therefore, one is unable to understand the blind faith, while others are not capable of that faith to give, how strong arguments were presented to them whatever. Once again, that no Ramachandran nor Hammond, nor most of the other scientists did not lead it as a proof that there is no God: if God existed and was all-powerful, he could easily create the brains of people so that they believe in him with the a power. "It is not clear just why God prefers to be epileptics, and during seizures, but that's a private matter," - adds to this, Professor Ramachandran.

It should be noted that the study of human morality in terms of neurophysiology not stand still. Religion definitely claim to be a landmark in the formation of human morals, but, for example, data from studies of prisoners in US and British prisons show a significant predominance among them religious people, not atheists and agnostics. Explanation of this phenomenon can give a lot, but in any case there is no real reason to believe that religious beliefs are added to people any moral qualities. You can recall the Crusades, the suicide bombers, the Inquisition, the persecution of the Old Believers of the Gentiles sacrifice, and so on. Still, most people do not kill each other, and not plunder. Why is that? More recently, it was made a curious discovery: discovered the so-called "mirror neurons." If we nibbled apple activates a group of mirror neurons, and the same group of cells is activated when we observe how the other person is chewing an apple. Mirror neurons allow people to imitate relatives, put yourself in the place of another, such as when we imagine or see the pain of another person (and if we're having discomfort). One can hypothesize: mirror neurons - a kind of built-in mechanism to maintain the standards of human morality of the golden rule: Do unto others as you want them to do to you, put yourself in the other person. People who do not work mirror neurons with autism - it harder to get along with people, it is more difficult to imitate others and put ourselves in their place. Another study on twins shows that many aspects of behavior, such as a tendency to forgive, renounce vengeance, largely inherited. There is reason to believe that morality, like religion, is partly innate feature of the brain, and if so, it makes sense to ask: why in the course of evolution, these personality traits have emerged and survived?

On the question of the origin of morality answers Richard Dawkins, a popularizer of the theory of evolution, the author of the famous book "The Selfish Gene." With the help of "game theory" simulated many situations in life. One such game is the "prisoner's dilemma". In this game two players. Each round, both players choose one of two things: to share or not to share a certain amount of money (can not agree beforehand). If both players are divided, both get 3 dollar conditional if both do not want to share - 2 conventional dollar. If one is divided, and the other does not want to share, first of all received a suspended 1 dollar, and the second receives as many as four conventional dollar. In the game one by one, if the player chooses the strategy will never share, it is guaranteed to receive as much or more money than his opponent. But if opponents hundred or two? In 1981, Axelrod and Hamilton organized a computer tournament for the game in the "prisoner's dilemma" to determine the best strategy. The tournament was a lot of programs: aggressive, self-centered programs, complex program calculates the wrong moves, soft, "good" program, and all they had to take turns with one another, gaining points. The most successful program was very simple, it was called "you to me, I tell you." In the first round she willingly shared, and then repeated the banal every previous move of the opponent. Simply put, this program is easy to "take offense", but also easy to "forgive" and willingly cooperated with other programs. When there are two similar programs, they immediately started to "make friends" to give $ 3 each, and thus win over the final results. The idea turned out to be the most suited friendly program easy to forgive injuries, became an argument in favor of that, and people in the community that can collaborate and suppress his ego, can generally be successful. In the life of animals can find numerous examples of cooperation, confirms this: the big fish do not eat the small fish that are cleaned with these parasites, monkeys willingly clean each other, and vampire bats may voluntarily share the extracted blood hungry friends, and it's all laid on level of genetic programs. Morality is a very useful acquisition enshrined in almost every one of us from birth.

By analogy with the genes of Richard Dawkins introduces the concept of memes. Meme - an idea that can be transmitted from person to person. Successful memes are part of the culture. Trendy music, jokes, rumors and expressions - all memes. Philosopher Dan Dennett draws a parallel between memes and viruses: both require a carrier to spread. The only difference is that a biological virus - this is the information recorded in the form of DNA and RNA molecules, and a meme - that is, information in the form of words or actions related to the idea or ritual. Spread can useless and harmful memes, but it is useful if the meme media, increasing his chances of spreading. For its conservation memes can have protective mechanisms, such as the meme may contain information that questioning him, the man was wroth higher power or fail - then the media meme harder to get rid of him. Dawkins considers religion and history as the evolution of memes, using the propensity of people to the beliefs to spread.

четверг, 29 октября 2015 г.

With global warming offered fight with diamond dust


Climate scientists from Harvard University have found a new way to deal with global warming. They offer spraying in the sky diamond nano-sized particles. This, in their opinion, is much safer sulphate mixture with water - a method that actively discussed recently. And the cost, "Diamond" method of just five dollars to each inhabitant of the Earth.

As the portal Nature, to combat global warming is now widely discussed new ways of geo-engineering - for example, spraying a mixture of sulfates in the sky with water, so that she reflected and scatter sunlight. However, according to scientists from Harvard, they have found a safer method of man-made climate cooling, rather than spraying sulphate aerosols. This dust particles of diamond or nanoscale alumina.

After contact with sulfates into the atmosphere, it forms sulfuric acid, which damages the ozone layer. Furthermore, sulfates absorb light at certain frequencies because of which the lower part of the stratosphere is heated - is, in turn, in an unpredictable way affect the climate. Finally, sulfates, scatter light: it will accelerate the growth of plants, but will reduce the efficiency of the solar cells. Alumina and diamonds will not lead to such problems, but the diamond dust, according to scientists, to be 50% more efficient than alumina. However, this method is rather expensive, despite the fact that the diamond powder is much cheaper solid diamonds (about $ 100 per kilogram). According to specialists, we need to spray every year hundreds of thousands of tonnes of diamond dust that will cost several billion dollars.

"With all the expensive diamonds this method of control solar radiation is not unrealistic," - says climatologist Debra Vayzenshtayn. Climate scientists are confident that 2065 spray 450 thousand. Tonnes will cost each of the ten billion people on Earth just five dollars.

Science "climate engineering" (or "geo-engineering") studies the development and implementation of technology-conscious and a reasonable influence on the Earth's climate on a global scale. Algorithms and technology that uses geo-engineering scientists conventionally divided into two main groups. In the first group are methods for reducing the CO2 content in the atmosphere. For example, climatologists offer to dissolve in the waters of the seas and oceans of iron sulfates governing the share of CO2 in the atmosphere through photosynthesis. Or use a kind of "vacuum cleaner" that can filter out the carbon monoxide from the air.

In the second group of geoengineering techniques are ways to control and regulate the Earth's sun exposure. Along with the installation space of huge parabolic mirrors here are methods to improve the reflectivity of the Earth's surface and the clouds or the atmosphere in general. One option may be an aerosol comprising sulfur particles. Sprayed into the atmosphere, it creates a kind of protective dome portion reflecting sunlight back into space.
Scientists laugh online brief retelling of his theses

Social network Reddit offered scientists to describe the essence of their theses understandable language. Light of science gladly shared their "discoveries." Some of them claim to be the Ig Nobel prize, and there are just these "pearls" of thought.

"Mushrooms, mushrooms everywhere! Especially in plants, where they do strange things. Do we understand what's going on? Nah. "

"Microwaves are really good to something warm up."

"Music expresses emotion or causes them? Read the following 200 pages, so as not to know the answer. "

"The sand can be washed off, so do not make it all sorts of important things."

"This protein can cause an asthma attack. Hmm, well, or not. "

"Adults learn best when they are happy."

"God knows why people have autism."

"Aluminium can be used to create a very steep microstructures. However, the microstructure cool enough, that we have allocated money for the completion of studies. "

"We need to make new magnets magnets old, because we end magnets."

"If you put a certain type of plastic in the water, it swells. If you put it under the skin, it absorbs fluid and tissue swell. That, ladies - new skin! "

"If you break the rat spine, it usually dies."

"The refrigerated laboratory mice twice accelerates metabolism. This is very bad for the research, which uses a mouse. "

"Museums properly digitize their collections. Can we fix it with the help of computers? It seems so. "

"The water will freeze if you hit it well."

"You can make antimatter move in an unknown direction, if it is bad set up the equipment."

"Even when times are really bad, most people want to live."

"You'll never guess why the English-speaking translators so cool screwed up with this piece of German author!"

"Gamma rays can not turn you into the Hulk. But E. coli E. coli - can be. "

"Brain cells communicate with each other. And sometimes - with ourselves. "

"If the brain is connected to the battery monkey, the monkey will notice it."

"Smart people make bad project teams. Use a combination of smart people and ordinary people to achieve better results. "

"To check whether you have the whole rail or tube, not necessarily to touch them."

"Sometimes the planet Uranus looks boring, but sometimes, in fact, it is interesting. Perhaps she has some crazy season. "
10 incredible things that can be done with sound

Sound waves can do incredible things with the practical application of science, art and medicine. In this collection you will find a list of ten such things.

1. Destroy the sound

The company "Orfild Labs" in Minneapolis built the quietest room in the world, it is used to test low noise (hum light bulbs, for example). The walls are completely sound-proof, but the sound level is 9 dB - it is so quiet that you can hear the sounds of their own work of internal organs. This sensory deprivation exacerbates all the senses, causing strange sensations in the body and brain. After spending a long time in this room, you run the risk of schizophrenia or acquire such strange powers, like the ability to feel the color to taste. A man can stand it no more than 45 minutes, then begin hallucinating.

2. To hide the sound of
Have you noticed that when walking through the woods at different times, such as day and night, you hear the sound a little different? If a day like all the noise merge, in the middle of the night every rustle sounded like a shot.
This phenomenon occurs when sound waves change their direction (refracted) due to temperature fluctuations during the diurnal cycle. During the day they go up, where the air temperature is lower and mainly distributed over your head, creating a zone of "acoustic shadow".
The effect is widely used by sailors in the ocean: to escape from the sound vibrations they are hiding in the area of ​​acoustic shadow from enemy sonar.

3. Arm sound
Users are able to turn almost everything into a weapon, even a sound. «The Long Range Acoustic Device» - a device that is used for these purposes. It looks like a darkened floodlight that shoots "beam" the sound volume of about 150 decibels at a distance of tens of meters. Sonic weapons can be used to suppress riots and unrest: the device can cause severe pain and damage health. Sound guns already used in European courts to deter Somali pirates.

4. Sound as Art
Sound waves can be made visible, it is called "Cymatics". For example, if you saw the impact of sound on the tank with sand, sand and stir to create a variety of shapes.
The first who discovered this, Galileo began in 1632, the year. He noticed that if you hold on a plate with fine particles of material cutter, they take the form of parallel lines of grinding.

5. Sound killer
Theoretically, a person can kill the sound pressure, but it looks like it is not, as you imagine. What usually follows a strong explosion overpressure is called - is a huge increase in atmospheric pressure. Some explosions can cause extremely loud noise, which, however, can not be heard, because the eardrums burst at around 160 decibels. But 200 decibels is enough to break the lungs and cause internal damage.
During World War I caused the death of so many questions: because of the lack of the human body visible damage, no one could understand, from which he died. So when you see the scene in the film how the hero, cast off the explosion, easily rises and goes about his business - this is nonsense. In real life, he would have been dead and deaf.

6. Sound helps fight crime
Businessmen and representatives of authorities in some cities in the United States decided to include classical music in the subway in areas with high crime rates. It turns out that the classics can disperse the aggressive teenagers and hooligans from public places - it seems it sounds unpleasant, causing discomfort and forced to leave in search of quiet.
For example, in London in 2003, the year and a half years in the underground included classical music. During this time, vandalism and robberies have decreased by a third.

7. Turn the sound laser
The laser produces a very narrow beam of light capable of moving even in a vacuum as opposed to sound waves requiring mediation environment. The Japanese in 2010 was created audio device capable of emitting a beam of sound - phaser. Its frequency was 170 KHz, and is eight times greater than the human perception threshold. The phaser is used for medical purposes.

8. Sound treats
Device «HIFU Transducer» focuses acoustic energy and emits a tremendous amount of heat, this phenomenon can be compared with a magnifying glass, transmissive sunlight. Professor of surgery at the University of Washington, said: "With this device, you can do all the same thing as using ultrasound." For example, the device is able to "seal" pork punctured lung in two minutes. This is a huge step in the non-invasive surgery.

9. Return to the sound past
One of the most interesting areas of science is arheoakustika - the use of sound in archeology. For example, each room of your house has its own sound, depending on the availability of accessories, furniture and other items. Scientists from the University of Salfold UK decided to learn how to sound Stonehenge. Writing the reflected sound waves from Stonehenge, and then built a computer model, the researchers found that the megaliths create a reflective space, similar to the lecture hall.

10. Sound like a compass
It is known that bats and birds orient themselves in space by means of sound waves, but until recently, scientists could not figure out exactly how the birds are at a great distance the way home. In 1997, geophysicist Jonathan Hastram found that about 60 thousand pigeons are lost during the migration to England from France - the way they crossed the bass sound from the aircraft. Inaudible to the human ear, it greatly disrupted the internal compass of birds. Hagstrom saw that the birds create a unique "sound cards" for navigation, but the objects erected by man, or change their landscape can greatly confuse birds.

вторник, 27 октября 2015 г.

How to increase the volume of the headphones?

Probably many of you have encountered this problem when connecting your headphones to your MP3 player or phone, the volume was not enough, in other words, the power of the player or the phone is not enough to ensure loud, clear sound. And how to be in this case?
To do this, you can collect a headphone amplifier with your hands. His scheme is rather simple and any wireless enthusiast, whether a beginner or experienced, will be able to make it, showing care and attention.
In creating this amp I wanted to make it unusual, I wanted to get away from the classic plastic housing. Remembering that fans modding computers often make transparent housing for their PC, I decided to make a clear case of your amplifier. And as a highlight - to abandon the printed circuit board and do everything hinged mounting.
Development of the scheme was carried out in the program of Eagle. This is a classic twin opamp amplifier OPA2107.
Below is a diagram of a headphone amplifier with your hands.
List of parts needed for the power supply of the amplifier:
- power connector;
- LED 5 mm (any color);
- R1LED - resistor of 1K to 10K (1 W);
- CP1, CP2 - electrolytes 470 uF (voltage 35 or 50 V);
- RP1, RP2 - 4,7K (1 W).
Parts List for the amplifier:
- IC1 - dual operational amplifier OPA2107 (note - on the concept of an operational amplifier is designated as OPA2132, the fact is that in the beginning I planned to use it);
- C1L, C1R - 0.68 uF 63 V (for audio input);
- C2, C3 - 0.1 uF (film, to stabilize the operational amplifier);
- R2L, R2R - 100K (0.5 W);
- R3L, R3R - 1K (0.5 W);
- R4L, R4R - 10K (0.5 W);
- R5L, R5R - Jumper (optional);
- Stereo jack - 2 pcs.
So I decided to do everything hinged installation - started manufacturing the frame. Here you will need care and attention, as body will be transparent, and any shortcomings will be immediately visible.
For power bus I used solid copper wire, 1 mm thick, taken from the scraps of the cable used to house wiring.
As the power supply is perfect any transformer power supply with a voltage of 12 V and an output current of 300 mA. It is advisable to use a transformer power supply, since the use of pulse can lead to interference (you will hear a constant hum in the headphones).
To power connector, I used here is a connector (center pin - that's a plus power supply).
Just below you can see the power supply wiring. At the entrance of the power supply at 12 V, which are then using voltage divider (resistors RP1 and RP2, at 4.7 ohm) are converted to 6 volts and -6 volts. The fact that the operational amplifier must be power bipolar. The wire in the center - the so-called "virtual ground", which in any case should not be connected to this ground (in the power connector).
Two large capacitor 470 microfarads 50 volts paired with 0.1 uF capacitors are needed in order to minimize interference on the OS and increase the stability of its operation. To do this, try to place them as close as possible to the conclusions of the Shelter.
Once you have finished soldering, you can proceed to check the amplifier. A word of advice, do not need to test the use of your coolest headphones, some quite simple. The fact is that if you mess up somewhere and soldered parts are not under the scheme, it is possible option, in which you spoil your headphones. But I hope that when checking everything will be fine.
Since the amplifier will continue to be filled with epoxy resin, then I decided to raise it a little, so that when he was pouring the exact center of the body. To do this, I soldered a small findings below.
I thought it would be nice a little bit more to refine the design of the amplifier and therefore decided to print labels on audio connectors. I prepared them in Adobe Photoshop, and then printed on thin photo paper and glued to the connectors on the double sided tape.
For some time I was thinking on the design of the body and the material from which to make a form to fill. I opted for the 1.5 mm plastic, it is perfectly normal office cut with a knife, leaving a very smooth edge.
Then I developed a form to fill, using all the same Eagle. Cut out all the parts, I started to build. To facilitate this process, I first picked all angles using superglue, then two times each glued seam, ensuring full tightness.
The easiest way to check the amount of the epoxy resin to fill - a form fill with water and then pour the contents into the cup and found the resulting weight and volume. Of course, it is possible to measure the volume with a ruler - but the way the water seemed easier.
For the filling, I used a transparent epoxy resin. Specifically for this resin hardener and resin ratio should be 1: 50. It is difficult to measure such a small amount of hardener, for this useful jewelry scales. And generally the same for different brands of epoxy resin and hardener ratio is different, see the instructions.
When hardening epoxy excessive heat occurs (in my case, the temperature was 62 degrees). The mold is then covered in order to prevent dust and debris to the surface.
I left to harden epoxy resin for a day. After this time, it was dry, and I proceeded to the removal of the form. For this I used a belt sander.
Then use the router I Stoch chamfer and all sharp corners.
For polishing body I first used sandpaper with 600 grit, and spent the final polishing "the wet" 1200 th fine sandpaper.
               a bit of cosmic distances


Degrees, minutes, seconds ... We always hear about it when it comes to celestial events and distances in the sky. 5, 10 degrees or 25 minutes - a lot or a little? Let's try to figure out what it is and how easy it is to understand what exactly is at stake.
The basis of this construction - the entire celestial sphere, the circle of which - 360 degrees. To measure smaller distances at our disposal, there is always a wonderful device - our own hands! The maximum pull out and lift a little finger. The width of the tip of the little finger at arm's length - approximately 1 degree. This is two times larger than the apparent diameter of the sun or moon. If you need to find an object located in degrees from the landmark (eg Jupiter), just pull out and position the raised little finger next to Jupiter. How to measure other distances shown in the illustration.
The great thing about this method - that it will work regardless of your age and gender because the arm length is proportional to the size of your body!
How to develop your mind Steve Jobs
(«Other»)

One of the qualities that Jobs was famous for - the ability to see what others do not see. About how it is managed and what technique for the development of his brain he used, we describe below.

Recently, a new book about Steve Jobs Becoming Steve Jobs. The author tells about the events in the life of Steve Jobs, with many of them you can hear the first time.

Perhaps more than others remembered the fact that the current Apple CEO Tim Cook Jobs offered part of his liver. On offer Cook Jobs responded angrily refused, saying that he would never do that. Though after a while, he still agreed to the transplant, many people believe that his refusal is due to the fact that the religion which he preached (Buddhism), prohibits such interference in your body.

The real cause of failure of Jobs we hardly know. However, he stuck to oriental, influenced the way he coached the brain.

Jobs often takes a conscious meditation in order to reduce the amount of stress and clear thinking.

Biographer Walter Isaacson brought a quote in the book of Jobs:

If you'll just sit and watch, you will see how infinitely your thinking. Try to calm him down - it will only get worse. But over time, thinking calms itself, and you learn to control it.

At this point awakens intuition, and you see everything around is much clearer than seen before.

Jobs describes a kind of meditation, which is practiced by Zen Buddhists and Taoists. He studied it for many years. Moreover, he popularized the practice that companies like Target, Google and Ford, began to teach their employees to meditate on a regular basis.

Although it seems that the idea of ​​corporate meditation sounds pretty strange, this is still something there.

Geoffrey James, journalist and editor of Inc. com, was able to communicate with Jobs on the subject of meditation long before his death. Here's how, according to him, looked technique that practiced Steve Jobs.

Sit in a quiet place. You may want to put a pillow under her to make you more comfortable. Take a few deep breaths.
Close your eyes and listen to your inner monologue. Your brain will sort through disjointed events that occurred recently: the transmission on TV, read books, talk with friends. Do not try to prevent it.
Instead, calmly go from thought to thought. Make it a ritual and performed five minutes each day.
Over time (a week or two), you learn to control your inner monologue, and then we can move on to more advanced practices.

Now, when you hear the stray thoughts in your head, try to make them quieter and gradually move away from them.
Freeing the brain, focuses his attention on those around you the sounds, the smells, the sensations in the body. You may begin to feel the wind differently on the skin or the sound of the refrigerator. It's a sign that you are doing everything correctly.
Another sign that you are doing everything right: time flies meditation.
About this meditation technique I wrote here, and she was really helpful.

Frankly, with the time I stopped to meditate for one reason. The first few weeks you do not see the result, then it finally comes, and you learn to control the thoughts in meditation, focus on different rustle and smell. But after a while progress slows down again, thus killing the motivation to do it on.

I did wrong, no longer meditate, and recently was looking for a new impetus to start doing it. And knowing that Jobs also practiced a similar technique - a great motivation to start.