Chadwick wrote his final draft of the MAUD Report. (1 Jan 1941 Jahr – 31 Dez 1941 Jahr)

Beschreibung:

He wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts. Chadwick observed that beryllium, when exposed to bombardment by alpha particles, released an unknown radiation that in turn ejected protons from the nuclei of various substances. Chadwick interpreted that radiation as being composed of particles of mass approximately equal to that of the proton but without electrical charge—neutrons. That discovery provided a new tool for inducing atomic disintegration, since neutrons, being electrically uncharged, could penetrate undeflected into the atomic nucleus.

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