Not sure of the particular purpose, but it's a way of translating smooth circular motion into intermittant circular motion, say, for a sporting arena clock where you want no ambiguity over switching from one second to the next.
Our science museum has a whole wall of motion translation devices. It's really cool to play with them. :-)
That's amazing. I never knew that before. What we've figured out over time never ceases to fascinate me. Especially knitting. Using two sticks and a string to make fabric? Buh?
One application of the Geneva drive is in movie projectors: the film does not run continuously through the projector. Instead, the film is advanced frame by frame, each frame standing still in front of the lens for 1/24 of a second (and being exposed twice in that time, resulting in a frequency of 48 Hz).
It never occurred to me before, but thinking about it, it does make sense.
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(no subject)
Date: 2008-06-16 02:15 pm (UTC)(no subject)
Date: 2008-06-16 02:19 pm (UTC)The clock is, I think, at MIT. Or in a train station in Germany. I think there's two clocks, one in each locale, and both use the same mechanism.
(no subject)
Date: 2008-06-16 02:22 pm (UTC)There's hundreds of uses!
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Date: 2008-06-16 06:48 pm (UTC)If so-- OMG keeping it.
(no subject)
Date: 2008-06-16 06:49 pm (UTC)(no subject)
Date: 2008-06-16 02:26 pm (UTC)Our science museum has a whole wall of motion translation devices. It's really cool to play with them. :-)
(no subject)
Date: 2008-06-16 02:41 pm (UTC)http://en.wikipedia.org/wiki/Geneva_movement
(no subject)
Date: 2008-06-16 04:07 pm (UTC)That's amazing. I never knew that before. What we've figured out over time never ceases to fascinate me. Especially knitting. Using two sticks and a string to make fabric? Buh?
(no subject)
Date: 2008-06-16 11:10 pm (UTC)It never occurred to me before, but thinking about it, it does make sense.
(no subject)
Date: 2008-06-16 07:03 pm (UTC)(no subject)
Date: 2008-06-16 02:24 pm (UTC)(no subject)
Date: 2008-06-16 02:39 pm (UTC)(no subject)
Date: 2008-06-16 05:07 pm (UTC)(no subject)
Date: 2008-06-16 03:13 pm (UTC)(no subject)
Date: 2008-06-16 05:47 pm (UTC)(no subject)
Date: 2008-06-16 09:16 pm (UTC)(no subject)
Date: 2008-06-16 07:05 pm (UTC)(no subject)
Date: 2008-06-17 01:00 am (UTC)WOW.
(no subject)
Date: 2008-06-17 02:57 am (UTC)