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Thread: Will an automatic watch work in outer space?

  1. #21
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    Quote Originally Posted by Brenellic2000 View Post
    I guess clocks in GP Satellites are not mechanical but are solar powered LCD/LED... would they stop running too at the speed of light?
    I suspect so, since microwaves also travel at the speed of light, and thus the signal would appear distorted.

  2. #22
    Super Moderator dave's Avatar
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    yes it would appear so..


  3. #23

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    ... they're not very reliable then!!! :-)

  4. #24
    Senior Member river rat's Avatar
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    This is starting to sound like a watchuseek question

  5. #25

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    Quote Originally Posted by river rat View Post
    This is starting to sound like a watchuseek question
    Except there the question would have been "What is the best watch I can buy that will still work in outer space as I approach the speed of light? I have a budget of $50, a 6" wrist, and prefer case sizes from 46-50 mm."

    In all seriousness, I think the reason automatics still work in space is because mass is mass, and it's the mass of the rotor that winds your watch, not the weight of the rotor.

  6. #26
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    Myron is quite correct. High school math equation for momentum is p=mv. The momentum will force the rotor to oscillate.

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