Across
- 2. The science of constructing objects.
- 4. Descovered the theory of Heliosyncracy.
- 7. Many people studies this subject,it involves symbols and numbers.
- 8. The science of building.
- 10. Synthematized knowldge derived from observation.
Down
- 1. Copernicus' theory.
- 3. He agreed with Copernicus' theory of the earth revolving around the sun.
- 5. First astronomer to theorize the Earth moved around the sun.
- 6. Designed the first helicopter.
- 9. Device used to look at the stars.