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Thread: Engineering or Physics ?

  1. 31st October 2011, 12:14 PM #11
    bee utey's Avatar
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    Quote Originally Posted by KarlB View Post
    ... and if you could cool the gear train to absolute zero at the same (relative) time you would have ... a perpetual motion machine!
    Considering the infinite amount of heat generated, that would be the supreme challenge... ...supernova, anyone?
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  2. 31st October 2011, 03:54 PM #12
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    Quote Originally Posted by bee utey View Post
    Considering the infinite amount of heat generated, that would be the supreme challenge... ...supernova, anyone?
    No no no! You are climbing into a Black Hole. At absolute zero there would be no friction and therefore no heat generated.
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  3. 31st October 2011, 04:57 PM #13
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    were's hawkins when u need, he would have an answer,
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  4. 31st October 2011, 05:26 PM #14
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    and THEN we put a hiclone on it!!
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  5. 31st October 2011, 05:31 PM #15
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    Quote Originally Posted by muddymech View Post
    were's hawkins when u need, he would have an answer,
    Steven or Jennifer?
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  6. 31st October 2011, 06:40 PM #16
    Craig
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    Quote Originally Posted by woody View Post
    Steven or Jennifer?
    or would "The Hawk" know?

    [ame=http://www.youtube.com/watch?v=fCHXpfW1W9o&feature=related]Smart Casual | The Hawk Song | 2011 Melbourne Comedy Festival All Stars - YouTube[/ame]

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  7. 1st November 2011, 06:56 PM #17
    jonesy61
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    That's an easy one

    Linear speed of the gear teeth on both gears will be exactly the same. The radial speed (radians...rpms..whatever) will be in the ratio of 2.5:1 regardless.

    So, both gears are travelling at the speed of light....but....would you be able to see them?
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