| 1. |
What did Johannes Kepler contribute towards our understanding of gravity? |
| 2. |
What did Newton contribute towards our understanding about how we describe gravity? |
| 3. |
What did Cavendish contribute towards our understanding about how we describe gravity? |
| 4. |
What did Einstein contribute towards our understanding about how we describe gravity? |
| 5. |
How does a scientific theory become a law? |
| 6. |
What is “eccentricity” when applied to orbits? |
| 7. |
What evidence (published in 1975) seemed (at first glance) to be contrary to what Johannes Kepler had discovered? |
