when was the first nuclear power plant made
Nuclear power In the United States, where Fermi and SzilÃ¡rd had both emigrated, this led to the creation of the first man-made reactor, known as Chicago Pile-1, which achieved criticality on December 2, 1942. This work became part of the Manhattan Project, a massive secret US government military project to make enriched uranium by building large reactors to breed plutonium for use in the first nuclear weapons. The US tested atom bombs and eventually these weapons were used to attack the cities of Hiroshima and Nagasaki.
Nuclear power in Japan Though all of Japan's nuclear reactors successfully withstood shaking from the 2011 Tohoku earthquake, flooding from the ensuing tsunami caused the failure of cooling systems at the Fukushima I Nuclear Power Plant on March 11. Japan's first-ever nuclear emergency was declared, and 140,000 residents within 20 km (12 mi) of the plant were evacuated. A comprehensive assessment by international experts on the health risks associated with the Fukushima I nuclear power plant disaster concluded in 2013 that, for the general population inside and outside Japan, the predicted risks were low and no observable increases in cancer rates above baseline rates were anticipated.[7] All Japan's nuclear plants were closed, or their operations suspended for safety inspections. The last of Japan's fifty reactors (Tomari-3) went offline for maintenance on May 5, 2012,[8] leaving Japan completely without nuclear-produced electrical power for the first time since 1970.