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Continuous service

  1. Oct 17, 2008 #1

    wolram

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    What device (thing with at least one moving part) in constant motion, has given the longest service?
     
  2. jcsd
  3. Oct 17, 2008 #2

    lisab

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    You mean with only original parts?
     
  4. Oct 17, 2008 #3
    That's a bit ambigeous, would there be maintenance carried out, are worn down and corroded parts replaced? Anyway, these things lasts milleniums:

    [​IMG]
     
  5. Oct 17, 2008 #4

    wolram

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    Yes, an engine that has had say piston rings changed would not count.
     
  6. Oct 17, 2008 #5

    wolram

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    No part replacement, may be oiling allowed.
     
  7. Oct 17, 2008 #6
    The Salisbury cathedral clock?

    http://en.wikipedia.org/wiki/Salisbury_cathedral_clock
     
  8. Oct 17, 2008 #7

    wolram

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  9. Oct 17, 2008 #8

    Danger

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    I was going to nominate my mother, but she only dates back to 1912... and she's not always in constant motion.
     
  10. Oct 17, 2008 #9
    my mixer belonged to my great grandmother. We laughed when we went to the science museum in Ottawa, and there it was. My dad took it apart and cleaned everything once, but weve never replaced any parts. Im sure its full of lead....
     
  11. Oct 17, 2008 #10

    Danger

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    What the hey?! You're a Canuck too?
     
  12. Oct 17, 2008 #11
    On Mythbusters I saw a thing about a light bulb, incandescent, that had been in service in a firehouse for over 100 years, on 24/7...
     
  13. Oct 17, 2008 #12

    lisab

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    binzing, I swear you and I have resonant brain waves sometimes. I had this same thought, but since there are no moving parts I didn't post it.
     
  14. Oct 17, 2008 #13

    Evo

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    The filament vibrates, therefor, it moves. :biggrin:
     
  15. Oct 17, 2008 #14
    My and my roommate had a small floor fan running 24/7 all last school year. It still works to this day.
     
  16. Oct 17, 2008 #15
    yuppers
     
  17. Oct 18, 2008 #16

    wolram

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    Gawd, the Canuckerites are invading, watch out guys or we will all be eating peanut butter on horse back.
     
  18. Oct 18, 2008 #17

    Astronuc

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    I'd vote for the Solar System - sun, planets, moons. Continuous motion, as far as we know, since before humanity, something on the order of 4-5 billion years. And no lubrication or adjustments required.

    Before the solar system would be the galaxy in which we are located - billions of years older.

    One did not specify if the device was natural or not.
     
  19. Oct 18, 2008 #18

    wolram

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    :bugeye: Give some people an inch and they will take billions :smile:
     
  20. Oct 18, 2008 #19

    Astronuc

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    I think BIG! :rofl: :biggrin:
     
  21. Oct 18, 2008 #20

    ~christina~

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