Professor Ernst Ruska (1906-1988) was a German physicist who built an electron lens,which he used in constructing the first electron microscope. Photographed here at the Max Plank Institute for Physics in Berlin | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Hollyman, Thomas |
Taille de l’image : | 3408 px × 5009 px |
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