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 goffadwriaeth wedi'u canfod
Gweld pob un yn Bywydau gyda'r hidlydd wedi'i gymhwyso19071988
American author and aeronautical engineer who pioneered hard science fiction and influenced the genre with his emphasis on scientific accuracy and critical thinking
