Across
- 5. design lasers
- 9. traffic lights
- 12. design walkways
- 13. solutions to environmental problem
- 15. bridges
- 17. prostheses
- 18. Design a network of hydrogen fueling stations
- 19. power plants
- 20. design waste systems
Down
- 1. laser surgery
- 2. robotic toys
- 3. maintain infrastructures like gas mains
- 4. develop automobiles
- 6. innovate ideas
- 7. mapping database
- 8. spacecraft
- 10. designing airport runway
- 11. spoon
- 14. water turbine
- 16. making art