1 janv. 1932 - James Chadwick
Description:
The British physicist produced unknown radiation after attacking beryllium atoms with alpha particles. This radiation was made up of particles with a neutral charge, as well as the exact mass of a proton. This particle is known as the neutron. Chadwick was awarded a Nobel Prize in physics for his discoveries.Ajouté au bande de temps:
Date:
1 janv. 1932
Maintenaint
~ Il y a 93 ans