What was invented by Zacharias Jansen?1). Jet Engine2). Radium3). Microscope4). Electric Lamp
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1. Piano was invented by ________.
2. Who Invented LED?
3. Who discovered Penicillin?
4. Who invented the Lightning Rod in 1749?
5. Who discovered Electron?
6. Who invented the electric tram?
7. Kaleidoscope was invented by ________.
8. Who invented Antibiotics?
9. Who invented JavaScript the programming language?
10. Who Invented the nuclear reactor?
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