On today in 1957, the United States detonates a 1.7 kiloton nuclear weapon within an underground tunnel at the Nevada Test Site (NTS), a 1,375 square mile investigation center located 65 miles north of Las Vegas. The test, named Rainier, was the 1st completely contained underground detonation and made no radioactive fallout. A modified W-25 warhead weighing 218 pounds and measuring 25.7 inches in diameter and 17.4 inches long was utilized for the test. Rainier was component of a number of 29 nuclear weapons and nuclear weapons security tests named Operation Plumbbob that were completed at the NTS among May 28, 1957, and October 7, 1957.
In December 1941, the U.S. government focused on building the world’s first nuclear weapon when President Franklin Roosevelt authorized $2 billion in funding for what had become named the Manhattan Project. The 1st nuclear weapon test took location on July 16, 1945, at the Trinity website near Alamogordo, New Mexico. A month or more later, on August 6, 1945, with the U.S. at war against Japan, President Harry Truman authorized the dropping of an atomic bomb named Little Boy over Hiroshima, Japan. Three days later, on August 9, a nuclear bomb called Fat Man was dropped a lot more than Nagasaki. Two hundred thousand folks, in accordance with some estimates, have been killed in the attacks on both cities and on August 15, 1945, Japan surrendered to the Allied Powers.
1957’s Operation Plumbbob occurred at the same time once the U.S. was engaged in a Cold War and nuclear arms race with the Soviet Union. In 1963, the U.S. signed the Limited Test Ban Treaty, which banned nuclear weapons testing in the atmosphere, outer and underwater space. A complete of 928 tests took spot at the Nevada Test Site among 1951 and 1992, once the U.S. performed its final underground nuclear test. In 1996, the U.S signed the Comprehensive Test Ban Treaty, which prohibits nuclear detonations in every environments.