Across
- 2. Baird Who invented T.V.?
- 4. Who invented dynamite?
- 5. Which scientist is best known for his well known laws for electromagnetic induction?
- 7. Who developed alternating current?
- 8. Who invented reflecting telescope?
- 10. Who invented the airplane?
- 11. who invented the first automobile?
- 12. Who invented air conditioner?
Down
- 1. who discovered electromagnetic induction in 1831?
- 3. Who discovered that black holes loose their mass?
- 6. Who invented the battery?
- 9. Who invented penicillin?