John Cockcroft (1897-1967). Caricature of the British physicist John Cockcroft. In 1932, Cockcroft performed the first artificial disintegration of an atomic nucleus. He bombarded a lithium nucleus with protons in a particle accelerator, and observed two alpha particles (helium nuclei) being produced. Study of the energies of these particles verified Einstein's theory of mass-energy equivalence. He was awarded the 1951 Nobel Prize for Physics for this work, along with Ernest Walton. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Brown, Gary |
Bildgröße: | 2478 px × 3528 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |