Hermann Oberth
18941989
Austro-Hungarian-born German physicist, mathematician, engineer, and rocketry pioneer whose theoretical work laid the foundation for spaceflight
2 ទំព័រវិញ្ញាណក្ខន្ធ បានរកឃើញ
មើលទាំងអស់ក្នុង Lives ជាមួយតម្រងដែលបានអនុវត្ត18941972
King of the United Kingdom and the British Dominions in 1936 who abdicated his throne later that year, becoming known as the Duke of Windsor
