Hey guys, I've been trying to find out about the expected effect of acceleration and/or motion on a pendulum clock; I asked this question in the mechancial engineering section of PF but didn't get any replies. It pertains to Einsteinian relativity also, specifically the effect of motion on clocks. I understand that a pendulum clock would not be precise enough to measure time dilation, but can we hypothesise an idealised, infinitely precise pendulum clock for the sake of explanation?(adsbygoogle = window.adsbygoogle || []).push({});

If a pendulum clock is put on a train and the train accelerates to an inertial speed, will that clock tick at the same rate as a similar clock left behind in the train station (at rest on earth)? If not, does anyone know by how much it would change?

Also, if a pendulum clock was built on a train traveling at an inertial speed, such that it didn't undergo acceleration, would it be expected to tick at the same rate as a clock in the train station?

Am I right in presuming that a pendulum clock would not work in deep space?

Also, if acceleration is the same as gravity, or at least has the same effect, would a pendulum clock accelerating in deep space start to tick, given the correct orientation?

Apologies for the glut of questions, it's just something I've been wondering about.

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# Questions on pendulum clocks

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