Dec 28, 2025 · Atomic bomb, weapon with great explosive power that results from splitting the nuclei of a heavy metal such as plutonium or uranium.

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 …

Aug 6, 2025 · First came the idea of splitting the atom; then, a chain of events leading to a moment forever etched in collective memory—the use of nuclear weapons on Hiroshima and Nagasaki in 1945.

Sep 6, 2017 · The atomic bomb and nuclear bombs are powerful weapons that use nuclear reactions as their source of explosive energy. Scientists first developed nuclear weapons technology during World …

0916:02 (8:16:02 am in Hiroshima) After falling from the Enola Gay for 43 seconds, the Little Boy atomic bomb detonates 1,968 feet above Hiroshima, 550 feet (167.64 m) from the Aioi Bridge.

Apr 9, 2025 · At their core, nuclear weapons are devices designed to release an enormous amount of energy through nuclear reactions, either by splitting atoms (fission) or combining them (fusion).

On 6 and 9 August 1945, the United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki, respectively, during World War II. The aerial bombings killed 150,000 to …

Learn how nuclear weapons work and the science behind them. The effects of a nuclear weapons are also explained, along with two example scenarios of a nuclear explosion over a city.

Dec 28, 2025 · Atomic bomb - Nuclear Weapons, Hiroshima, Nagasaki: The first atomic bomb was built in Los Alamos, New Mexico, during World War II under a program called the Manhattan Project.

Sep 30, 2024 · This article takes readers through the fascinating and sobering history of the development of the nuclear bomb, beginning with the early discoveries in nuclear physics, through …