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  1. #11
    Priestess Of Syrinx Katsuni's Avatar
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    Or for the really short version:

    Physics is whot yeu call trying to describe how something happened, for example, a car skidding on the ground and coming to a halt.

    Quantum physics is whot yeu call trying to describe how something happened on a really really really really tiny scale, for example, theoretical particles like gravitons, to explain why the car was even on the ground in the first place and didn't get flung off into space from the earth's rotation.

  2. #12
    morose bourgeoisie
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    Newton's laws describe properties of things you can see; from specks of dust to stars - maybe even galaxies...although that is in question until we determine what exactly dark energy and matter are...
    quantum physics describes things on the 'sub-atomic' scale, or the rules that goven the motion of matter/energy at its smallest size; the bits that make up electrons, protons and atomic nuclei. Things on this scale do not behave in a way that is predictable through Newtonian physics. "quantum" means "how much?" in Latin...
    It's a basic goal of physics to unify these two physics into a system that can describe both, without contradictions. String theory is such an attempt at a unified theory of everything...the 'holy grail' of physics.
    there is more, but that the basic dealio, yo.

  3. #13
    Senior Member INTPness's Avatar
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    I heard an INTJ explaining one time how quantum physics can explain why your wrist watch will be off by a couple minutes every 5 years.

    I'm an INTP and everything, so listening to the discussion was cool, but listening to it kind of gave me a headache. It can get pretty hairy.

  4. #14
    Dreaming the life onemoretime's Avatar
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    There's no appreciable difference between tendency and fact.

  5. #15
    null Jonny's Avatar
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    Quantum mechanics is just asking the question "Why?" one more time.
    [SIGPIC][/SIGPIC]

  6. #16
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    and how

    i like it...think i might do some courses in it

  7. #17
    Writing... Tamske's Avatar
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    Quote Originally Posted by cloud View Post
    Here is a challenge for you high IQers.

    In your own words or plain english language so we can all understand. Less jargons the better. How is it different from newtonian laws and physics.
    Better if you can summarize everything you know in one post.
    No copy and paste from wikipedia or the internet.

    Keep in mind my IQ is below 70 so I can't understand complex shit.
    This is a real challenge for an ENTP theoretical physicist! Thanks
    I'll try to keep it as simple as possible...

    Newtonian mechanics describes very well how big things like cars, crates, wheels, tables, bottles,... behave. Paper clips and dust particles are also seen as "big" here.
    With small, I mean really small: molecules, atoms, electrons... These tiny particles behave very differently from what we are used to.

    Newtonian physics says: "for every cause, there is only one effect." Sometimes similar causes give very different effects. But still, if the cause is exactly the same, the effect is the same too.

    Quantum physics says: "for every cause, there are more effects". It's like throwing a die. Except that a real die is "big" and if you know exactly the speed and position in the beginning, you can predict accurately which side it will show. For electrons this is NOT the case. The quantum mechanical "die" gets thrown every time you look at the electron.

    This is very strange. We are used to predict the outcome of experiments. If I shoot a cannon, I can predict where the shell will fall. Every uncertainty in the prediction is caused by uncertainty in the shooting. If you are perfectly sure of the begin speed and direction and place of the shell, you will be perfectly sure of its destination!

    If I shoot an electron cannon, I can only make a prediction like "50% of the electrons will fall here, 40% of the electrons will fall there and 10% of the electrons will stay in the air". Even if I'm perfectly sure of the begin speed, direction and everything.


    There is more, but I don't want to flood you with information...
    Got questions? Ask an ENTP!
    I'm female. I just can't draw women

  8. #18
    Alexander the Terrible yenom's Avatar
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    Ok

    the biggest mysteries in the universe (in my opinion) is time and the human brain.
    Because these are the two things that define our perception of the universe.

    I will keep observing this thread.
    The fear of poverty turns people into slaves of money.

    "In this Caesar there are many Mariuses"~Sulla

    Conquer your inner demons first before you conquer the world.

  9. #19
    Alexander the Terrible yenom's Avatar
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    so is it about probability or energy or stuff?
    What books should I read to learn more about this topic?
    what about string theory and unfied field theory or black holes and stuff.
    Anyone have any articles and recoomendations?
    The fear of poverty turns people into slaves of money.

    "In this Caesar there are many Mariuses"~Sulla

    Conquer your inner demons first before you conquer the world.

  10. #20
    Habitual Fi LineStepper JocktheMotie's Avatar
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    Quote Originally Posted by cloud View Post
    so is it about probability or energy or stuff?
    What books should I read to learn more about this topic?
    what about string theory and unfied field theory or black holes and stuff.
    Anyone have any articles and recoomendations?
    The Elegant Universe- Brian Greene

    This will cover all those things you mentioned and is quite accessible as an introduction to general relativity and quantum mechanics as well.



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