Harold Urey
18931981
American physical chemist who discovered heavy hydrogen, earning a Nobel Prize, and contributed significantly to understanding isotopes and the development of organic life
4 ទំព័រវិញ្ញាណក្ខន្ធ បានរកឃើញ
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មើលទាំងអស់ក្នុង Lives ជាមួយតម្រងដែលបានអនុវត្ត18931971
American actor, comedian, and stunt performer famous for his extensive work in silent comedy films
