Image: Clock Mainspring
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Description: Drawing of a clock mainspring from the mid 19th century. WARNING - Never disassemble a watch or clock that contains a mainspring without the proper tools and techniques. The mainspring contains a lot of energy and can release suddenly, causing serious injury.
Title: Clock Mainspring
Credit: Downloaded from Dionysius Lardner (1858) Handbook of Natural Philosophy: Mechanics, Walton & Maberley, London, fig.325, p.355 on Google Books
Author: Dionysius Lardner
Permission: Public domain - artist died in 1859
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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