Atomic bomb atomic bomb explosion has five means of destruction: the first is light radiation, at the beginning of the explosion, a strong light, any direct vision of the light are going to be blind, the vitreous humor of the eyes into two watts of water. The second is the shock wave, the explosion formed by the gas wave will push everything, the radius of destruction in tens to hundreds of kilometers. The third is the early nuclear radiation, nuclear reactions produced by a variety of radiation radiation to cause harm to living organisms. Nuclear radiation is mainly α, β, γ three kinds of rays: α rays are high-speed helium nuclei, ionization ability is very strong, but the penetrating ability is very weak, as long as a piece of paper can be blocked, but inhaled into the body is harmful; β rays are electron streams, irradiation of the skin burns obvious. These two kinds of rays because of the small penetrating power, the impact distance is relatively close as long as the radiation source does not enter the body, the impact will not be too big; γ-ray penetration is very strong, is a very short wavelength of electromagnetic waves. γ radiation and X-rays similar, can penetrate the human body and buildings, the distance of harm is far. γ-ray radiation damage to the skin is manifested as follows: First, the onset of slow disease course is long; Second, the burn wound repeatedly broken, long time, and even malignant change! It is the most headache in the protection of a kind of radiation. The fourth is electromagnetic radiation, mainly to the wireless communication and electronic industry to produce damage. The fifth is radioactive contamination, because the atomic bomb explosion can not let the nuclear charge into the reaction, in fact, only 10% of the atomic bomb in Hiroshima nuclear charge reaction, the rest are as floating dust floating in the air, the air, soil and water can form up to 20 years of long-term radioactive contamination. On August 6, 1945, a U.S. B-29 bomber, the Elnora Gay, dropped a bomb on Hiroshima. On August 9, the USS Burke dropped another bomb, the Fat Man, on Nagasaki, killing more than 73,000 Japanese people. In fact (little boy) the atomic bomb is the most chicken in the family of nuclear weapons, hydrogen bombs, neutron bombs, electromagnetic pulse bombs, shock wave bombs, the power of these minutes to the earth into slag! China’s development of nuclear weapons has always adhered to three core tenets, namely, the assurance of no first use, the purpose of defense, and the ultimate goal of complete destruction.