What is a nuclear weapon? A nuclear weapon: is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. Both reactions release vast quantities of energy from relatively small amounts of matter; a modern thermonuclear weapon weighing little more than a thousand kilograms can produce an explosion comparable to the detonation of more than a billion kilograms of conventional high explosive
Why people want to develop nuclear weapons?
They were made for National Defense.
The history of nuclear weapons
Scientist discovered how to create a chain reaction
in the 1930s.
Robert Oppenheimer led an operation known as
The “Manhattan Project.”
The Manhattan Project is the code name for the US government's secret project that was established before World War II and culminated in the development of the nuclear bomb.
The destruction of Hiroshima/Nagasaki
Hiroshima was the primary target of the first nuclear bombing mission on August 6, with Nagasaki being the alternative target.
70,000 to 80,000 people were killed immediately and another 70.000 were injured in Hiroshima.
80,000 had died from the bombing in Nagasaki.
The code name for the bomb used in Hiroshima was called, “Little Boy.” The bomb used in Nagasaki was called, “ Fat Boy.”
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