This Day In History
This Day In History
Monday, July 6, 2020

«atomic bomb»

November 6, 1944

Fat Man
Fat Man
Plutonium is first produced at the Hanford Atomic Facility and subsequently used in the Fat Man atomic bomb dropped on Nagasaki, Japan. Plutonium is a transuranic radioactive chemical element with the chemical symbol Pu and atomic number 94. It is an actinide metal of silvery-white appearance that tarnishes when exposed to air, forming a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states. It reacts with carbon, halogens, nitrogen and silicon. When exposed to moist air, it forms oxides and hydrides that expand the sample up to 70% in volume, which in turn flake off as a powder that can spontaneously ignite. It is also radioactive and can accumulate in the bones. These properties make the improper handling of plutonium dangerous.
Plutonium, Nagasaki, atomic bomb, Fat Man

Igor Kurchatov

Igor Kurchatov
(January 12, 1903 - February 7, 1960)
Igor Vasilyevich Kurchatov was a Soviet nuclear physicist who is widely known as the director of the Soviet atomic bomb project.
Soviet physicist, physicist, atomic bomb
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