olegt
Posts: 1405
Joined: Dec. 2006
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Here is the best one so far:
| Quote | | You need a sun earth/ moon system to exist in isolation with the right rotation and revolution rate to allow for our existence. AND you need to keep the planet from falling into the sun. |
So I tell him that a single planet rotating around a star will follow an elliptical trajectory and will not fall into the star. Basic Newtonian mechanics. Joe replies:
| Quote | | How does it stay away, oleg? Remember there is only that system in the entire universe. |
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