https://padlet.com/21debartoloda/l8wdpdzmbu6p Made with a stroke of good luck en-us 2018-03-12 13:58:16 UTC 2018-03-27 13:10:27 UTC hello@padlet.com 21debartoloda https://padlet.com/21debartoloda/l8wdpdzmbu6p/wish/240866830 Hiroshima & Nagasaki: Dated on Aug 6, 1945 - Aug 9, 1945]]> 2018-03-12 13:58:43 UTC https://padlet.com/21debartoloda/l8wdpdzmbu6p/wish/240866830 21debartoloda https://padlet.com/21debartoloda/l8wdpdzmbu6p/wish/246063020 Nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei.When a single free neutron strikes the nucleus of an atom of radioactive material like uranium or plutonium, it knocks two or three more neutrons free.]]> 2018-03-26 13:21:32 UTC https://padlet.com/21debartoloda/l8wdpdzmbu6p/wish/246063020 21debartoloda https://padlet.com/21debartoloda/l8wdpdzmbu6p/wish/246468040 Today, the background radiation in Hiroshima and Nagasaki is the same as the average amount of natural radiation present anywhere on Earth. ]]> 2018-03-27 13:06:01 UTC https://padlet.com/21debartoloda/l8wdpdzmbu6p/wish/246468040