Alexander Stepanovich Popov
18591906
Russian physicist, engineer, and inventor known for being one of the first to invent a radio receiving device
2 ទំព័រវិញ្ញាណក្ខន្ធ បានរកឃើញ
មើលទាំងអស់ក្នុង Lives ជាមួយតម្រងដែលបានអនុវត្ត18591932
British novelist and children's writer best known for the classic "The Wind in the Willows"
