Russian physicists from VNIIFTRI SINP MSU and ITEP studied the acoustic effects from entry bunch of electrons in a substance. Interest in him is linked with the possibility of acoustic detection of ultrahigh-energy cosmic neutrinos. Neutrino - trudnoulovimye most of the known elementary particles. Neutrino detectors (often called neutrino telescopes) are the big tanks of water (or ice, for example, IceCube in Antarctica), in which the many "electronic eyes" - photomultiplier. These detectors are so deep under the ground (under water, under the Antarctic ice), that no other particles, except neutrinos, they can not reach. The vast majority of neutrinos pass a detector thoroughly, leaving no trace, and only rarely are they the same? Face? on matter, it turns into electrons. If the original neutrinos

Warmth without batteries, electric heaters and gas: Chelyabinsk, scientists have invented a new way of heating. Infrared film is one hour heats the room by ten degrees. This new technology is cheaper than conventional batteries at least threefold. The first innovation in a school of the village tried Vitamin Sosnovsky area. Nicholas Epishkov, head of Science and Technology Center CHGAU, explains: "It has a current system heats up. A special screen heats the entire plane, and the wall is becoming hot." Long strips of aluminum foil and steel strings. On view - normal film, but in reality - the world opened in the area of heating. The invention of scientists agroinzhenernogo Chelyabinsk State University has received recognition at the international exhibition of high technologies. Now try