Timeline for To what extent does trajectory determine gravity sources?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Feb 10, 2013 at 19:11 | comment | added | Douglas Zare | @Ben Crowell: Finiteness can be weakened in this proof, say to collections of masses with no limit points so that the sum converges everywhere except for the masses. | |
| Feb 10, 2013 at 3:11 | comment | added | user21349 | This is a nice, rigorous demonstration of two of the three features that I think are generally required: (1) general position (here, nonconstant trajectory), and (2) a finite number of masses. The other general issue is (3) what are you measuring relative to? (Here it could be the center of mass of the finite collection of masses.) | |
| Feb 10, 2013 at 2:30 | comment | added | Joseph O'Rourke | Nice, Douglas! (Yes, I meant space-time trajectory---Now clarified.) | |
| Feb 10, 2013 at 2:14 | history | answered | Douglas Zare | CC BY-SA 3.0 |