Across
- 4. - Light transmission
- 5. - Energy emission
- 7. - Communication innovation
- 9. - Astronaut's feat
- 10. - Faster than sound
- 14. - Underwater vessel
- 15. - Rapid cooking
- 16. - Supersonic travel
- 18. - Mechanical math aid
- 19. - Semiconductor material
Down
- 1. - Focused light
- 2. - Miniaturized component
- 3. - Sputnik's launch
- 6. - Penicillin, for example
- 8. - Polio prevention
- 9. - Energy from the sun
- 11. - Automated technology
- 12. - Atomic energy
- 13. - Genetic material
- 17. - Polio prevention