Across
- 2. who was burned at the stake by the Church for his heliocentric views?
- 5. who published the general theory of relativity?
- 7. who built his own telescope and eyepieces that were advanced enough to have a magnifying power of 6,450 times?
- 9. who was the first geocentric believer, who also proved the Earth was spherical?
- 10. who calculated the circumference and the radius of the Earth?
- 12. who’s model contained epicycles and a motionless Earth?
- 14. who was put on house arrest for his views of the universe and not forgiven by the church until the late 1900's?
- 15. who built an observatory, with no telescopes, and made accurate and continuous measurements for 20 years?
- 17. who was the first heliocentric believer and attempted to measure the relative distances between the Earth and the Sun and the Earth and the Moon?
- 18. Who accidentally discovered the cosmic microwave background radiation, CMB?
Down
- 1. who developed the Doppler Effect, or Red shift?
- 3. who founded The Laws of Motion and the Universal Law of Gravitation?
- 4. who discovered that the Moon shines by reflecting sunlight?
- 6. Who's diagram is a graph which has the absolute magnitudes (actual brightness) of stars?
- 8. who developed the Laws of Planetary Motion?
- 11. who’s heliocentric model was not the first ever, but the first to become famous?
- 13. who completed the first star catalog and brightness scale, and figured out the precession, or wobble, of the Earth’s axis?
- 16. who developed the famous OBAFGKM spectral classification?
