Atomic bombings of Hiroshima and Nagasaki - Wikipedia
On August 6 and 9, 1945, the United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki, respectively. The bombings killed between 150,000 and 246,000 people, most of whom were civilians, and remain …
Nuclear weapon - Wikipedia
Weapons whose explosive output is exclusively from fission reactions are commonly referred to as atomic bombs or atom bombs (abbreviated as A-bombs). This has long been noted as something of a misnomer, as their energy comes from the nucleus of the atom, just as it does with fusion weapons.
Atomic Bomb: Nuclear Bomb, Hiroshima & Nagasaki ‑ HISTORY
2017年9月6日 · An atomic bomb, codenamed "Little Boy," was dropped over Hiroshima Japan on August 6, 1945. The bomb, which detonated with an energy of around 15 kilotons of TNT, was the first nuclear weapon...
Atomic bomb | History, Properties, Proliferation, & Facts | Britannica
2024年10月30日 · atomic bomb, weapon with great explosive power that results from the sudden release of energy upon the splitting, or fission, of the nuclei of a heavy element such as plutonium or uranium.
atomic bombings of Hiroshima and Nagasaki - Encyclopedia Britannica
3 天之前 · atomic bombings of Hiroshima and Nagasaki, during World War II, American bombing raids on the Japanese cities of Hiroshima (August 6, 1945) and Nagasaki (August 9, 1945) that marked the first use of atomic weapons in war.
Bombing of Hiroshima and Nagasaki - HISTORY
2009年11月18日 · On August 6, 1945, during World War II (1939-45), an American B-29 bomber dropped the world’s first deployed atomic bomb over the Japanese city of Hiroshima, immediately killing 80,000...
The bombing of Nagasaki - Encyclopedia Britannica
3 天之前 · Quick Facts. Date: August 6, 1945 - August 9, 1945. Location: Hiroshima. Japan. Nagasaki. Context: World War II. Atomic bomb at Nagasaki, Japan On August 9, 1945, three days after detonating a uranium-fueled atomic bomb over Hiroshima, Japan, the United States dropped a plutonium-fueled atomic bomb over the Japanese port of Nagasaki. (more)
The Most Fearsome Sight: The Atomic Bombing of Hiroshima
On the morning of August 6, 1945, the American B-29 bomber Enola Gay dropped an atomic bomb on the Japanese city of Hiroshima.
The Atomic Bomb and the End of World War II
2020年8月4日 · Seventy years ago this month, the United States dropped atomic bombs on Hiroshima and Nagasaki, the Soviet Union declared war on Japan, and the Japanese government surrendered to the United States and its allies. The nuclear age had truly begun with the first military use of atomic weapons.
The Atomic Bombings of Hiroshima and Nagasaki - U.S. National Park Service
Bombardier Kermit Beahan releases the Fat Man atomic bomb. 1202 (11:02am in Nagasaki) Fat Man explodes 1,650 feet (502.92m) above the city. Between 40,000-75,000 people die instantly. The bomb creates a blast radius one mile wide (1609.34m) .