Hermann Oberth
18941989
Austro-Hungarian-born German physicist, mathematician, engineer, and rocketry pioneer whose theoretical work laid the foundation for spaceflight
3 kumbukumbu zimepatikana
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Tazama wote katika Maisha kwa kichujio kilichotumika18941956
American sexologist and biologist whose Kinsey Reports challenged societal norms and became a precursor to the sexual revolution
