Ernst Ruska
19061988
German physicist who designed the first electron microscope and won the Nobel Prize in Physics for his work in electron optics
2 kumbukumbu zimepatikana
Tazama wote katika Maisha kwa kichujio kilichotumika19071988
American author and aeronautical engineer who pioneered hard science fiction and influenced the genre with his emphasis on scientific accuracy and critical thinking
