The secret here is an ultra-thin clockwork dynamo. Clockwork mechanisms use gears in both these ways. Explains how toys were produced as a byproduct of the clock-making industry. Chicago Review Press, Hands-on guides Making Things Move:
One's very simple; the other's quite a bit more ingenious. Virtually all clockwork devices have gears, which are wheels with teeth that mesh together. B atteries not included—as a child, those are just about the most disappointing words you can read when you buy a new toy.
A short introduction to the clockwork mechanism inside a typical pocket watch. As you'll discover by reading our main article on gears , there are generally two reasons why you use them: As the blue bar moves left-right, left-right, the yellow gear alternately meshes with the red gear on the left, then the red gear on the right, and back again. Rate this page Please rate or give feedback on this page and I will make a donation to WaterAid.
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I'm not going to go into the math in any more detail you can find a brief outline of it here if you're interested. You could run a gear from the toy's mainspring and power a cam—an egg-shaped wheel with a lever on top. This is just about the most basic clockwork mechanism you could imagine. As the cam rotates, it pushes the entire vertical blue bar 4 first to the right and then back to the left—so it converts the gear's rotary motion into reciprocating motion.
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Please rate or give feedback on this page and I will make a donation to WaterAid. Cutting to the chase, it's no surprise to find that a longer or thinner spring one that you can wind up with more turns stores more energy, while a shorter or thicker spring gives more torque.
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