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Ultra-small nuclear warheads can be fired from a machine gun - VIDEO PDF Print E-mail
Sunday, 06 September 2015 12:14
In the 60s of the last century in the United States and the Soviet Union were classified work to create ultra-small nuclear warheads. Developed spetspatrony caliber 14.3 and 12.7 mm heavy machine guns, and bullets of 7.62 mm. Radical reduction of size, weight and complexity of the design has been achieved through the use of exotic transUranium element californium - or rather, its isotope with an atomic weight of 252. Following the discovery of this isotope physicists stunned that the main channel of the collapse had been spontaneous fission, in which neutrons took off 5-8 (for comparison, Uranium and plutonium - 2 or 3). The first estimates of the critical mass of the metal gave a fantastically small amount - 1.8 grams! Each bullet is released during a burst of energy, equal to an average of 300 kg of TNT explosion. Very interesting was the effect of the atomic bullets hit the tank or a building. Even if the active armor of modern tanks would not allow such a warhead to break through the protection, the energy chain reaction evaporates literally a piece of armor, and the rest of the tank melted: caterpillar and tower firmly welded to the chassis. Once as a brick wall, atomic bullet evaporates about a cubic meter of masonry and the building collapsed. This blast was much weaker than that of the same explosive power. At the disposal of the scientists were only micrograms of this very rare material. Get California was very difficult and very expensive. In the case of bullets 7.62 mm ball diameter of California, necessary for a chain reaction, it was about 8 mm. In addition, the bullet got heavy, and to keep the ballistics, and had to make a special powder, which gave the correct pool crackdown in the trunk. Another problem of ammunition - heat. All radioactive elements emit heat, and less than a half-life, the more they are heated. Bullet with californium core allocates about 5 watts of heat. Because of the warm-up changed characteristics of explosives and fuse, and at strong heating bullet could get stuck in the chamber or in the barrel or, worse still, spontaneously detonate. Therefore cartridges were kept in a special refrigerator, is a massive (about 15 cm thick) copper plate with slots for 30 rounds. The channels between the pockets pressurized circulating liquid ammonia, reducing the temperature of the bullets to minus 15 degrees. This cooling plant consumes around 200 watts of power and weighing about 110 kg, which required a special vehicle for transportation. However, even frozen to minus 15 bullet had to be used for no more than 30 minutes after removal from the oven: charge into the store, take a position, select the desired aim and shoot. If this did not occur in time, the cartridge must be returned to the refrigerator and then cooled. If the bullet stayed out of the refrigerator longer than one hour, it will be disposed of. Another drawback was the irresistible unpredictable results. The energy of the explosion of each particular instance ranged from 100 to 700 kilograms of TNT equivalent, depending on the party, time, and storage conditions, and most importantly - the material purpose, which gets the bullet. The shock wave gets pretty weak compared to chemical explosives of the same capacity, but the radiation is, on the contrary, received a much larger share of the energy. Because of this, it was necessary to shoot at the maximum effective range gun. But even in this case, the shooter can get a large dose of radiation. Shelf life unique californium bullets did not exceed six years, so that none of them lived up to our time. Californias have been withdrawn and used for purely scientific purposes, such as obtaining a superheavy elements.

НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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