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Antoine Henri Becquerel discovered radioactivty accidently. He left some of the uranium on top of a black photography plate. After leaving the uranium there, there was a white spot on the developed plate.
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Gamma Rays were discovered by Paul Villard. He could see a difference between them and x-rays because gamma rays could penetrate further. It wasnt until 1914 that we knew the were a form of light.
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Marie Curie wins the Nobel Prize while sharing it with Becquerel, and Pierre Currie. The won it for the discovery of natural radioactivity.
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In 1908 Hans Geiger, with Ernest Rutherford, ivented the geiger counter. The first geiger counter only read alpha rays. A combination of a geiger counter and metal dector are comonly used in airport seccurity.
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THe Neutron was discovered by James Chadwick. He discovered it by performing experiments at University of Cambridge. The word neutron comes from the latin root neutral!!!
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It was set off in Alamogordo, New Mexico, I think as a test. It was set off by the U.S.A. The second atomic bomb was set off by the U.S.S.R.
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This bomb was called the Tsar Bomba. It was a hydrogen with a yield!! It weighed 6000 pounds!
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THe treaty didn't come into force until 1970, The treaty is reviewed every 5 years. The treaty was originally planned to last 25 years but its still in affect.
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This was a Plutonium fire. THis fire came really close to burning Denver. Some forms of plutonium ignite spontaneously in air.
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THe power plant failed after a 9.0 magnitude earthquake. After the eathquake a tsunami hit with 10 meter waves. The power plant had three cooling systems each one failed.
