Across
- 2. What did J Robert Oppenheimer create during the second World war?
- 4. Something discovered by Benjamin Franklin
- 9. The person who invented the clock
- 11. Who invented the phonograph in 1877?
- 12. Something invented by Karl Benz
Down
- 1. An useful object created in 1876
- 3. Who had the idea of the televison when he was 14 years old?
- 5. An invention that you use about twice a day created in the 1850's
- 6. Who invented the microwave?
- 7. An invention created in 1268 used by 7 persons in the class
- 8. Who invented the computer in 1936?
- 10. What was the last name of Alexander Graham bell assistant