Didn't Keplar expand on that?
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Kepler died in 1630
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I'm going to like this so people think I'm smart
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Ha ha ha...humours

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Gear terminology for centre distance follows this formula only C=r1+r2
Thanks. Twitter will use this to make your timeline better. UndoUndo
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What is the white dot? If sun is one point then what is the other point?
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the other focus is 'empty'
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and with few exceptions the second focus is also within the Sun, but not at its center.
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Is this true? If so, that explains a lot, I was very confused.
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