Some things just look wrong. This video is one of those things. Looking at the non-circular gear mechanisms at rest you would think that there would be no way it could turn and function. But the proof is in the video!
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why?
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Why not?
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From the same guy, showing a more practical aspect to non-circular gears: http://www.youtube.com/watch?v=RqDTwP1a6bo
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Whaaaaa? That’s almost perverted in a way. Yet awesome.
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It also changes the speed of the driven gear without having to change the speed of the driving gear. If you notice when the planetary gears go to the larger radius section, their speed decreases, then increases again when they reach the smaller radius sections of the outer gear.
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Many of these are already in use in automobiles for pumping liquids through the spaces in between the gears such as in water pumps or oil pumps.