Physicists had measurement of the size of the proton, the results of which were again different from the results of other methods, and the reasons for these differences are still not clear. Article scientists published in the journal Science, a summary of its results NatureNews.To measure the size of a proton (or rather, Zemach radius of the particle) the researchers used a laser spectroscopy. First, hydrogen-1 (consisting of only two particles: protons and electrons) irradiated with muons. According to the standard model, the muon-neutrino are close relatives of the electrons.As a result of Read more [...]
People - the most successful primates in the world, but our bodies do not give the Grand Prix for good design.
This is a summary of one of the sessions of the annual meeting of the American Association for the Advancement of Science, where anthropologists with hypotheses and analysis of fossils tell about the adaptations that change the body, originally adapted to life in trees. "Our anatomy was not created from scratch, - Jeremy said Desilva from Boston University (USA). - Evolution works with tape and paper clips. "
Shin-splints - pain in the muscles of the front of shin after excessive Read more [...]
Dr. Vincent Martin of the Center for Health at the University of Cincinnati was used to the complaints of their patients that their headaches as if amplified during a thunderstorm. Asking them questions about it, he found a definite trend: the number of migraines increases during lightning storms.
To test their hypothesis, Martin and his son, who is studying to be a doctor, was asked to carry 90 people for three - six months of daily diaries. In the diaries, patients had to describe their symptoms, including intense headaches, sensitivity to light and noise, and the duration of pain. Read more [...]
Do you enjoy basking in the warm sunshine? In this case, would be nice to know such nuance radiated sunshine, as they say foreign media, it is also a clever way of the sun to destroy us. With the light of the stars makes us and our planet is slowly falling over in order to eventually absorb. This hook is called the Poynting-Robertson effect and applies to all objects in the solar system, especially small - all of them smoothly and slowly rotate in a spiral, with each turn of the sun becoming closer and closer.Poynting-Robertson effect follows the same principle, which is used in laboratories Read more [...]
Scientists Zhisu Jin and Phil McCausland from the Department of Earth Sciences of the University of Western Ontario, led an international research team, studying the fossils on the length of 6000 km. The study showed that the equator passes through the Ordovician northern Greenland, the Canadian province of Manitoba and the states of Utah and Nevada.
Ordovician, the second of the six periods of the Paleozoic era, began about 488 million and ended about 443 million years ago. "In terms of the magnetic poles of the Earth, 450 million years ago, they were in a completely different place. Accordingly, Read more [...]
The European Commission has allocated a multimillion-dollar grants to scientists from Switzerland. Henry Markram try to implement ambitious project of computer simulation of the human brain. According to the Swiss, if successful, people will open the secrets of gray matter.
Markram goal - building a detailed and realistic computer model of the human brain. Scientists have already proven that he can simulate parts of the brain of rodents. Markram believes that the computer model will not only understand how the brain, but also to treat mental illness.
The scientist explained the purpose of Read more [...]
U.S. researchers are studying the possibility of treating autism using highly questionable, and even apparent repelling treatment. Scientists believe that the fight against autism need to ingest parasitic worms.Therapy parasites slowly but surely proving its effectiveness in the fight against autoimmune diseases. And more and more patients ingest the eggs of worms. The basis of this treatment is still considered an alternative, the hypothesis that the "bad" organisms actually protect the immune system from "overheating." For example, in the 19th century, people did not take Read more [...]
Celebrate the centenary of approximately 13% of women born in 1951, and from born in the 2060-m a century will live 60%.National Statistical Service of the UK believes that will mark the centenary of about 13% of British women born in 1951. And without any Novocain pyatidesyatipyatiletney Romanian candle.
If in 1917, King George V sent a congratulatory letter of 24 centenarians, by 1952 the number of those who crossed the centenarians has increased tenfold, to 255. In 2011, it increased in 40 times - up to 9736 British elders. Economist John Appleby, of the charity King's Fund also calculated Read more [...]
Natural disasters in the world continues. Almost every winter, countries with traditionally temperate trapped by snow and frost disaster. Last year, residents of one of the southern countries - Italy skating on frozen canals of Venice. This winter, the real Siberian snow felt by Britain and France. Most people associate these natural phenomena of global warming and the melting of glaciers, leading to a shift in the North and South poles. Moreover, the scientists do not deny the reduction of the area of ice in the Arctic, but attributed this to other causes.Warming - no problemControversy on Read more [...]
Volcanologists Kamchatka created a working model of a volcano. The height of a five-story house, it reproduces the natural processes that occur during the eruption. Only molten magma replaced water. Say something similar to the installation of an artificial heart. Manmade volcano with a natural beauty, of course, does not compare, but science is not the point. It is important that vibration sensors at the outpouring of water the reflected curve, which coincides with the data of seismographs recorded during bursts of activity at the volcano Klyuchevskaya. Such experience Kamchatka volcanologists Read more [...]
Russian polar explorers in drilling wells to the Antarctic Lake Vostok discovered unusual giant ice crystals, which are interested in physics, told journalists Hydromet Alexander Frolov."Very interesting, unexpected application - this ice interested Kurchatov Institute. They say there crystals - no lake ice, and mainland - a giant crystals of 5-6 meters. And they have only the right form," - said Frolov. Lake Vostok in Antarctica is a unique aquatic ecosystem that has been isolated from the surface of Earth's atmosphere and biosphere for millions of years. His study plays an important Read more [...]
If you are concerned about any kinds of pain, do not rush to swallow painkillers. This is the conclusion drawn by researchers from Johns Hopkins University. If you are concerned about any kinds of pain, do not rush to swallow painkillers. The study found that erotic fantasy and avant-garde banal reflections on sexual themes relieve pain better than most modern pain medication drugs. In particular, in one experiment, the group of subjects were asked for as much as possible to keep their hands in ice water. Subjects who were not given instructions to submit to the experiment various sexual scenes, Read more [...]
Employees of All-Russian Research Institute of Animal Production working on a pet of the future. They work on the rocks, which are quite unlike the usual cows and sheep. Correspondent of the TV program "Morning of Russia" visited the nursery XXI century.
In VIII century Earth was influenced by short-powerful gamma-ray bursts, the source of which could be the merger of two neutron stars or two black holes within our galaxy. Its findings by German scientists from the University of Jena is based on analysis of tree rings of Japanese cedar.The researchers found in the rings formed in the years 775-776, a high content of carbon-14 isotopes and beryllium-10. Initially, the researchers assumed that the source of gamma-ray burst was a supernova, but in historical documents, it has not been mentioned, besides the remains of the explosion of a massive Read more [...]
Scientists first to show that bacteria are able to reprogram cells, turning them into a kind of moving stem cells used to penetrate the muscular and nervous systems. The experiment was conducted on mice. In the study, researchers introduced bacteria in glial cells of the brain that are responsible for supporting neural connections. In just a few weeks the bacteria were able to change the biochemistry of these cells, acting on their "baby" genes and turning off the "adult." As a result, glial cells were transformed into stem. "Immunity does not attack the cells that Read more [...]
DNA segments consisting of four chains were found in the chromosomes of cancer cells, which gives reason to consider such a sign of malignant transformation of the structure.DNA can exist in many forms. For example, can change parameters of the double helix, it may become more compressed or elongated, spiral itself - to be as right-and left-twisted, and the interactions between the nucleotides may be very different from those postulated classical Watson and Crick.
Many of the alternative forms of DNA exist in the living cell and needs them for some purpose. But there are others who, it would Read more [...]
Scientists are looking for a woman who is willing to have a Neanderthal - the first time in 30,000 years. This extravagant idea occurred to Harvard geneticist George Church (George Church), who intends to clone extinct species and is even ready with a surrogate mother to play it to the light, writes "Bagnet" referring to the foreign media.
"In our lab, kept many remains of Neanderthals. We're trying to have cells that can be cloned. Well, let's say that I was born a healthy baby Neanderthal. Who knows whether he will grow in our environment or sverhumnym superpower? Read more [...]
Such a quality person as leadership, may be an inherited trait. Leadership can be transmitted from parents to children with genes. A team of scientists from different countries conducted a study comparing the genetic samples of about 4000 people. The researchers collected information on work and relationships, establishing a serious relationship between genotype rs4950 and leadership. Scientists from Harvard University, New York University and the University of California estimated the twins, and found that a quarter of the observed changes in the behavior of managers can be explained by genes. Read more [...]