Science Trivia Questions

Discussion in 'Science' started by HereWeGoAgain, Jan 29, 2018.

  1. HereWeGoAgain

    HereWeGoAgain Banned

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    ...
     
  2. HereWeGoAgain

    HereWeGoAgain Banned

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    Q23: What physicist stood on his head and peed in front of his peers, in order to prove you can pee in space?
     
  3. truth and justice

    truth and justice Well-Known Member

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    Relative vector velocity addition?
     
  4. truth and justice

    truth and justice Well-Known Member

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    Quantum theory is probably the most tested theory and so far has predicted correctly quite a few things
     
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  5. HereWeGoAgain

    HereWeGoAgain Banned

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    That requires that something has a velocity. That something must still exist. Only the velocity is zero. But you're thinking in the right direction.
     
  6. HereWeGoAgain

    HereWeGoAgain Banned

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    Yep! I suppose it is given this title because so many different particle tracks are involved in experiments with particle accelerators, and so many collisions occur. But then all of modern electronics depends on quantum mechanics as well.

    Damn! I had another question in mind but now I forgot what it was! :D
     
    Last edited: Feb 15, 2018
  7. WillReadmore

    WillReadmore Well-Known Member

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    Acceleration will cause increasing air density as measured from the front and toward the back of the car.

    The balloon will move toward the front of the car.
     
  8. truth and justice

    truth and justice Well-Known Member

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    Quantum Entanglement is the cause and has been demonstrated experimentally. The actual mechanism, I'll leave that to God as Einstein did too :)
     
  9. HereWeGoAgain

    HereWeGoAgain Banned

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    Neither Quantum Mechanics or General Relativity, or Newtonian physics for that matter, have ever been wrong within their domain of applicability.
     
  10. HereWeGoAgain

    HereWeGoAgain Banned

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    So no answer?
     
  11. WillReadmore

    WillReadmore Well-Known Member

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    The Theory of Evolution has predicted the order of pretty much every finding of living matter from the earliest evidence to today.

    That would seem to be a tough challenger at the least.
     
  12. WillReadmore

    WillReadmore Well-Known Member

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    There are numerous tests of randomness that get incredibly serious.

    But, that's far from proof that any sequence is actually perfectly random.

    I'd suggest there is no such possibility.
     
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  13. truth and justice

    truth and justice Well-Known Member

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    Heisengberg's Uncertainty Principle is heavily involved until the wave function breaks down at time of measurement, or something like that:)
     
  14. HereWeGoAgain

    HereWeGoAgain Banned

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    Correct. There is no way to prove any sequence of numbers is random, no matter how long it may be.
     
  15. HereWeGoAgain

    HereWeGoAgain Banned

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    Yes. :D Very counter intuitive!

    Since helium is lighter than air, the balloon is pushed forward as the denser air in the car is pushed to the back.
     
    Last edited: Feb 15, 2018
  16. HereWeGoAgain

    HereWeGoAgain Banned

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    Q24: What critical component of your computer hard drive depends on Brownian Motion, in order to work.
     
  17. HereWeGoAgain

    HereWeGoAgain Banned

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    truth and justice got it: Quantum Mechanics.
     
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  18. HereWeGoAgain

    HereWeGoAgain Banned

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    so no answer. :D
     
  19. truth and justice

    truth and justice Well-Known Member

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    :cry: no :)

    I thought that the actual mechanism is yet to be proven, ie nobody knows
     
    Last edited: Feb 15, 2018
  20. WillReadmore

    WillReadmore Well-Known Member

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    The read head on a electromagnetic hard drive surface has to "float" within an incredibly close distance - enough that particles such as smoke would be a big deal. That head is held close by mechanical force but then floats from there.

    Or, at least that's the way they used to work.

    I could believe that brownian motion could be involved in that float.
     
  21. WillReadmore

    WillReadmore Well-Known Member

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    Quantum Mechanics is a good answer - I'm not complaining.

    I'm just thinking about how one would imagine the count working.

    There are a lot of life forms and evolution is used throughout all biology, from paleo to agriculture, to medicine.
     
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  22. HereWeGoAgain

    HereWeGoAgain Banned

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    Brownian motion occurs in fluids.
     
  23. WillReadmore

    WillReadmore Well-Known Member

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    That's certainly a good definition.

    There is Brownian motion in gasses, too, though.

    I'll have to think about where there are fluids in a hard drive. Uh, main bearing, uh, movement of the arm , uh

    I think any movement at the level of moving the R/W head would have to be careful at the level of Brownian motion.

    I don't have it yet!
     
  24. HereWeGoAgain

    HereWeGoAgain Banned

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    True, gases are fluids.
     
  25. HereWeGoAgain

    HereWeGoAgain Banned

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    Last edited: Feb 16, 2018

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