Across
- 2. railroads
- 6. aquarium
- 8. stove
- 9. mobile apps
- 11. water turbine
- 13. bridge
- 15. sail
- 17. higher powered x-ray machines
- 19. test new products
- 20. nuclear reactor
Down
- 1. vaccines
- 3. cell phones
- 4. cotton gin
- 5. robots
- 7. maintain utility infrastructures
- 10. laser surgery resulting with less bleeding
- 12. highways
- 14. airplanes
- 16. wide streets
- 18. jet engine