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
2007 Glorietta explosion ruling out the possibility of a terrorist attack and are still investigating the incident to discover the true cause of the explosion. Finally, at November 22, 2007 the Philippine National Police had concluded that the explosion is caused by gas, and not a bomb. However they still did not know how it happened. The policemen are now working on the negligence angle. On January 8, 2008, Ayala Land, Inc. (ALI)'s commissioned foreign experts found that the explosion was caused by a bomb with RDX components - cyclotrimethylenetrinitramine (used in military and industrial applications, in C-4, a plastic bomb). On January