Across
- 5. Alternating current
- 6. Alexander Parkes
- 7. Father of political philosophy, morality, and
- 9. Pinhole Camera
- 11. Toilet,Lamination
- 12. logic
- 13. Moonlight Sonata
Down
- 1. Leonardo da Vinci's most famous creation
- 2. Paper
- 3. TNT
- 4. Abbas ibn Firnas
- 8. Chinese thinker and social philosopher, The first private teacher
- 10. Nicolas Appert