Across
- 5. made the solar clock
- 7. studied geometry in Egypt
- 8. was the leading mathematician and astronomer
- 10. was the oath taken by Doctor's
- 11. made the anchor
Down
- 1. is a statement in mathematics that can be proven true
- 2. was used to make observations
- 3. was made by Descartes
- 4. invented the Water mill
- 6. invented basic geometry
- 9. made the odometer