Image: Free mainspring torque curve
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Description: Theoretical torque curve of a clock mainspring. From Hooke's Law the torque exerted by the spring decreases linearly to zero as it unwinds. At the left side where the spring approaches full wind, all the slack is gone from between the turns and they are pressed tight together, so the torque increases.
Title: Free mainspring torque curve
Credit: Own work
Author: Chetvorno
Permission: I the author, Chetvorno (Chris Burks), release this work into the public domain for any use whatever.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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