Discovery photo of the positron, 1932 A132/0025

Discovery photo of the positron, 1932

Código da imagem : A132/0025
Dimensões : 2.861 X 3.543 pixels
Orientação : horizontal

Data do upload no fornecedor : 25/07/1987
Tamanho máximo não comprimido : 29,0MB

Pauta:	Discovery photo of the positron, 1932
Título:	Discovery photo of the positron, 1932
Descrição:	The discovery photograph of the positron, the positive version of the electron & the first antimatter particle to be discovered. The cloud chamber photo was taken in 1932 by US physicist Carl Anderson. It shows the track of a positive particle that enters the chamber from below. The particle is known to be positive because of the way it bends in the chamber's magnetic field; & it is proved to be moving up the picture because it loses energy & curves more in the magnetic field after traversing the 6 mm thick lead plate in the middle. But the track is too faint to be caused by a proton; it was exactly like an electron's track; it had to be the predicted positron.
Coleção:	Science Photo Library
Crédito:	CARL ANDERSON/SCIENCE PHOTO LIBRARY/ Fotoarena
Disponibilidade:	imediata
Direito de uso:	Direito controlado
Autorização do(a) modelo:	não
Autorização da propriedade:	não

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