Needless to say, being at ground zero of such an explosion means instant death. For instance, a 10-kiloton nuclear weapon, equivalent to the size of the Hiroshima and Nagasaki bombs, would immediately kill about 50%t of the people within a 2-mile (3.2 km) radius of ground detonation, a...
The sudden, large scale release of energy in the explosion of a nuclear bomb in air gives rise, in addition to nuclear emanations such as neutrons and gamma rays, to an extremely hot, rapidly expanding mass of air.** The rapidly expanding air mass has an initial temperature in the ...
Is it possible to live through the immediate effects of a nuclear explosion? Will you die instantly, or will your demise be slow and painful?
Seven hoursafter a nuclear explosion, residual radioactivity will have decreased to about 10 percent of its amount at 1 hour, and after another 48 hours it will have decreased to 1 percent. What would happen if a nuke detonated underwater? At the maximum diameter of the first oscillation, a...
Atomic bomb: A bomb powered by nuclear fission, the splitting of atoms. Most atomic bombs are rated in kilotons—each of which is the equivalent of 1,000 tons of TNT. Fallout: When a nuclear explosion occurs at ground level, the blast blows bits of dirt and debris into the air, where...
1.爆炸原理:原子彈(atomic bomb)的爆炸原理是重原子核裂變的鏈式反應(chain reaction of heavy nuclear fidssion)。 一些重元素(如235U、239U)的原子核在一個中子轟擊下,分裂成兩個質量相近的新核(也稱核碎片),並放出2～3個中子和200MeV能量過程,稱為重核裂變反應。如235U的反應式為: ...
NASA tested four nuclear scenarios: a surface explosion, a delayed surface explosion, a subsurface explosion and a standoff explosion (where the bomb doesn't come into contact with the asteroid). The surface and subsurface explosions are the most effective, but there's a good chance of ...
Nuclear explosion In both nuclear weapons and nuclear power plants, a huge amount of energy is released from the nuclear fission process. The difference is that in a nuclear power plant it is a controlled process, while in a nuclear bomb it is not. ...
The very high temperatures attained in a nuclear explosion result in the formation of an extremely hot intense mass of gas called a fireball. For a l0-kiloton (千吨,核弹当量单位) explosion in the air, the fireball will attain a maximum diameter of about 300m; for a l0-megaton (兆吨,...
These nuclear materials are crucial because they can sustain nuclear chain reactions which then release a massive amount of energy in small period of time, causing a nuclear explosion. Getting the nuclear material isn’t the hard part, but manufacturing the highly enriched uranium-235 from the ...