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how would i make a mechanic solar system that has the planets moving but a different speeds because for example pluto goes around the sun less than earth could you please help?
- joseph (age 13)
You need a set of gears to make the different planets, each attached to
its own gear, travel around with different periods. You can even buy
things like this, although I believe that good models are expensive.
(republished on 07/19/06)
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