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Thread: expansion of space on small scales

  1. #1 expansion of space on small scales 
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    space is expanding everywhere, right? why aren't we aware of it on small scales? if space expanding it should pull small things apart just like it does for galaxies.

    if bonds between atoms and gravity hold things together on small scales would that violate the law of conservation of energy?


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    We wouldn’t have detected it if the scale is 1:1 then, this would be like zoom in. what we’ve discovered is a relative expansion!


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    hmmm... then things'd be getting less dense and we would eventually know the difference, right?
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    sak
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    Things like weight pressure etc.. are something we feel. We really need not know the difference with a slightly different physical science concept.
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  6. #5  
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    right, but that doesn't anwser my question, why aren't atoms, planets, solar systems and the like torn apart by the expansion of the universe?
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    Forum Bachelors Degree Shaderwolf's Avatar
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    That's a good question... my only thought is that everything expands uniformly?
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    Dark matter supposedly threads through large agglutinations of mass like the earth, and connects to other strings of its self elsewhere. This web is what holds the planets, solar systems, and galaxies together. Though, dark matter does not connect multiple galaxies which is why they are spreading apart. If dark matter were to suddenly become non existent, we would be torn apart.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

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    Use your computing strength for science!
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  9. #8  
    Forum Bachelors Degree Shaderwolf's Avatar
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    Isn't it that dark matter holds large galaxies togeather only because of it's graitational pull? and, I didn't think we had dark matter here... I'm probably just ignorant. would you care to enlighten?
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  10. #9  
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    Quote Originally Posted by Shaderwolf
    That's a good question... my only thought is that everything expands uniformly?
    then we wouldent notice the universe expanding, and things wouldent appear to be moving apart at all... am i right?
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  11. #10  
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    They claimed on a show I watched that dark matter is traveling through us right now, holding us together. Without dark matter, everything including the galaxies would be moved apart.

    Its a uniform exponential expansion of sorts. If it were perfectly uniform, we wouldn't see a difference, but its exponential uniformity, meaning that all matter once it has reached a certain point will experiance the same type of increase in acceleration as the next. Its not uniform all at once; only when the matter before the first meets the same requirements will the same effect happen to it.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

    -Einstein

    http://boinc.berkeley.edu/download.php

    Use your computing strength for science!
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  12. #11  
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    No, I dissagree. Dark matter will not be able to fill in the gaps of normal matter. Dark matter is like normal matter just that it is invisable and untouchable (-which points out to an 4th spatial dimension), so if the universe would be expanding in an unproportional way, we would be torn to appart.

    Still I have a problem with the term expanding, I have lived with the big bang theory my whole life but I have never asked myself it would "increase" in new positions/coordiantes or "stretch" causing the positions to be pulled appart.
    Does someone know the answer?
    I haven't come to fight my word, but to find the truth.
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