| Size: 303 Comment:  | Size: 343 Comment:  | 
| Deletions are marked like this. | Additions are marked like this. | 
| Line 6: | Line 6: | 
| '''1L10. Universal Gravitational Constant''' | = 1L10. Universal Gravitational Constant = | 
| Line 8: | Line 8: | 
| '''1L20. Orbits''' | = 1L20. Orbits = * 1L20.10 [:GravityWell: Gravity Coin Well] | 
Gravity
PIRA classification 1L
1L10. Universal Gravitational Constant
- 1L10.30 [:CavendishBalance:Cavendish Balance] 
1L20. Orbits
* 1L20.10 [:GravityWell: Gravity Coin Well]
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