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Thread: Another Relativity question.

  1. #1 Another Relativity question. 
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    Hi. Microbiology student here.

    In terms of time dilation in relation to a physical objects speed, is it safe to make this conclusion-

    A human body that spent a portion of time sitting, not in motion, would have "aged" different from a human body that spent that same portion of time in motion?

    Meaning, no matter the extreme miniscule difference in speed, is there always an equally miniscule change in "ageing" that is a constant under a formula?

    Thanks!


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  3. #2  
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    The very short version of an answer, I believe, is yes. Given two bodies in relative motion, if one moves away from and back to the other object, it will have had "aged" less than the object that didn't move.


    Wise men speak because they have something to say; Fools, because they have to say something.
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  4. #3 Re: Another Relativity question. 
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    Quote Originally Posted by quantumboy
    Hi. Microbiology student here.

    In terms of time dilation in relation to a physical objects speed, is it safe to make this conclusion-

    A human body that spent a portion of time sitting, not in motion, would have "aged" different from a human body that spent that same portion of time in motion?

    Meaning, no matter the extreme miniscule difference in speed, is there always an equally miniscule change in "ageing" that is a constant under a formula?

    Thanks!
    Nope

    Body A has speed 0.99999999999999999999999 *speed of light
    Body B has speed 0.01 m/s smaller than Body A

    Difference in speed is small, difference in ageing is large.
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  5. #4 Re: Another Relativity question. 
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    Quote Originally Posted by jartsa
    Quote Originally Posted by quantumboy
    Hi. Microbiology student here.

    In terms of time dilation in relation to a physical objects speed, is it safe to make this conclusion-

    A human body that spent a portion of time sitting, not in motion, would have "aged" different from a human body that spent that same portion of time in motion?

    Meaning, no matter the extreme miniscule difference in speed, is there always an equally miniscule change in "ageing" that is a constant under a formula?

    Thanks!
    Nope

    Body A has speed 0.99999999999999999999999 *speed of light
    Body B has speed 0.01 m/s smaller than Body A

    Difference in speed is small, difference in ageing is large.



    thank you. that logic got the gears turning.
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  6. #5 Re: Another Relativity question. 
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    Quote Originally Posted by quantumboy
    A human body that spent a portion of time sitting, not in motion, would have "aged" different from a human body that spent that same portion of time in motion?

    Meaning, no matter the extreme miniscule difference in speed, is there always an equally miniscule change in "ageing" that is a constant under a formula?

    Thanks!
    Trouble is, the whole planet Earth is in motion. So, if you get up and start walking, you could just as easily walk in a direction where your total speed is less as walk in a direction where your total speed is greater.
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  7. #6 Re: Another Relativity question. 
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    Quote Originally Posted by quantumboy

    thank you. that logic got the gears turning.
    I thought ArcaneMathematician's answer was better

    Quoting does not work if the second checkbox down there \/ is checked
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  8. #7 Re: Another Relativity question. 
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    Quote Originally Posted by kojax
    Trouble is, the whole planet Earth is in motion. So, if you get up and start walking, you could just as easily walk in a direction where your total speed is less as walk in a direction where your total speed is greater.
    Good point :-D
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  9. #8 Re: Another Relativity question. 
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    Quote Originally Posted by kojax
    Quote Originally Posted by quantumboy
    A human body that spent a portion of time sitting, not in motion, would have "aged" different from a human body that spent that same portion of time in motion?

    Meaning, no matter the extreme miniscule difference in speed, is there always an equally miniscule change in "ageing" that is a constant under a formula?

    Thanks!
    Trouble is, the whole planet Earth is in motion. So, if you get up and start walking, you could just as easily walk in a direction where your total speed is less as walk in a direction where your total speed is greater.
    haha nice! I like it!
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  10. #9 Re: Another Relativity question. 
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    Quote Originally Posted by quantumboy
    Quote Originally Posted by kojax
    Quote Originally Posted by quantumboy
    A human body that spent a portion of time sitting, not in motion, would have "aged" different from a human body that spent that same portion of time in motion?

    Meaning, no matter the extreme miniscule difference in speed, is there always an equally miniscule change in "ageing" that is a constant under a formula?

    Thanks!
    Trouble is, the whole planet Earth is in motion. So, if you get up and start walking, you could just as easily walk in a direction where your total speed is less as walk in a direction where your total speed is greater.
    haha nice! I like it!
    BUT! I didnt say Earth =PP
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