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 02:41 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.