Across
- 7. created the TV
- 9. made the great kite
- 10. made artificial skin
- 11. a man created an ordnance train kit
- 13. invented the steam engine
- 14. one of them created a computing device that can accurately detect the exact location of a sound through an array of microphones
- 17. made direct photon detection
- 18. potato gun
- 19. created the hypersonic air travel
- 21. air conditioning
- 24. made a pogo bed
- 25. one of them created the cotton gin
Down
- 1. created a reactor core
- 2. innovated or invented the internet
- 3. created circuit boards
- 4. built a jet engine
- 5. built nuclear reactors
- 6. can make reinforced concrete
- 8. made the interchangeable parts
- 12. made hydroplanes
- 15. made a dock wise vanguard
- 16. created artillery cannons
- 20. made search engines
- 22. lawn mower
- 23. built a gas lift