when was the atomic bomb made
But Einstein did not directly participate in the invention of the atomic bomb.   On July 16, 1945, the first atomic bomb was test detonated at Alamogordo, NM. The two other prototype bombs were dropped on Hiroshima and Nagasaki, Japan, on August 6th and August 9th.n a gun-type bomb, Uranium-235 is the fuel. In an implosion bomb, Plutonium-239 is the fuel. A fusion-boosted atomic bomb uses the implosion design, with the addition of gaseous tritium (Hydrogen-3).