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Fission
Nuclear fission of heavy elements was discovered on December 17, 1938 by German Otto Hahn and his assistant Fritz Strassmann. -
First controllled reaction
On December 2, 1942 man achieved here the first self-sustaining chain reaction and thereby initiated the controlled release of nuclear energy. -
First atomic bomb to explode
At 0530, 16 July 1945, in a remote section of the Alamogordo Air Base, New Mexico, the first full-scale test was made of the implosion type atomic fission bomb. For the first time in history there was a nuclear explosion. And what an explosion! -
Hiroshima bombing
The United States, with the consent of the United Kingdom as laid down in the Quebec Agreement, dropped nuclear weapons on the Japanese city of Hiroshima in August 1945, during the final stage of World War II. -
Nagasaki bombing
On Aug. 9, 1945, three days after the bombing of Hiroshima, the United States dropped a second atomic bomb on the city of Nagasaki. The New York Times article reported that the dropping of the bomb occurred at noon, Japanese time. -
End of world of ww2
World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. -
USS Nautilus
USS Nautilus (SSN-571) was the world's first operational nuclear-powered submarine. The vessel was the first submarine to complete a submerged transit of the North Pole on 3 August 1958. -
Experimental Breeder Reactor 1
Experimental Breeder Reactor I (EBR-I) is a research reactor and U.S. National Historic Landmark located in the desert about 18 miles (29 km) southeast of Arco, Idaho. On December 20, 1951, it became the world's first electricity-generating nuclear power plant when it produced sufficient electricity to light four 200-watt light bulbs. It subsequently generated sufficient electricity to power its building, and continued to be used for experimental purposes until it was decommissioned in 1964. -
Chernobyl disaster
The Chernobyl disaster was a catastrophic nuclear accident that occurred at the Chernobyl Nuclear Power Plant in the city of Pripyat,Soviet Russia. An explosion and fire released large quantities of radioactive particles into the atmosphere. The Chernobyl disaster was the worst nuclear power plant accident in history in terms of cost and casualties. The struggle to contain the contamination ultimately involved over 500,000 workers and cost an estimated 18 billion rubles. -
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