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Lampshader t1_j93cof0 wrote

>- have no moving mechanism

Uh, have you used a micrometer before? They have moving parts, that's kinda their defining feature, the use of a threaded mechanism to get higher precision

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A_Light_Spark t1_j944lr9 wrote

By moving I mean parts that are constantly getting wear and tear during operation or even standby. Like a cog in a clock or a piston in an engine.

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