Nuclear explosion debris. The first man made nuclear explosion occurred on July 16, 1945 at 5:50 am on the Trinity Test Site near Alamogordo, New Mexico in the United States, an area now known as the White Sands Missile Range. The event involved the full-scale testing of an implosion-type fission atomic bomb. In a memorandum to the U.S. Secretary of War, General Leslie Groves describes the yield as equivalent to 15,000 to 20,000 tons of TNT. Following this test, a uranium-gun type nuclear bomb (Little Boy) was dropped on the Japanese city of Hiroshima on August 6, 1945, with a blast yield
Lexington Avenue explosion Lexington Avenue explosion The Lexington Avenue explosion was the July 4, 1914, explosion of a terrorist bomb in an apartment at 1626 Lexington Avenue in New York City. The blast killed four people and injured dozens. A large quantity of dynamite, which was apparently being used to construct a bomb to blow up John D. Rockefeller's Tarrytown home, exploded prematurely at a new seven-story model tenement. The blast destroyed most of the top three floors of the building, killing three conspirators and another renter who was not part of the bomb plot. In July 1914, two members of the Lettish