Francis William Aston
18771945
British chemist and physicist who won the 1922 Nobel Prize for his mass spectrograph, which led to the discovery of isotopes in non-radioactive elements and the enunciation of the whole-number rule
2 ទំព័រវិញ្ញាណក្ខន្ធ បានរកឃើញ
មើលទាំងអស់ក្នុង Lives ជាមួយតម្រងដែលបានអនុវត្ត18491945
German field marshal and military officer who commanded Army Group Mackensen during World War I
