A Paradox of science.

Discussion in 'Pseudoscience' started by theorist-constant12345, Feb 1, 2015.

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  1. billvon Valued Senior Member

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    I've posted many pictures of people falling off their bikes. It is impossible, and that's scientifically provable!
     
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  3. theorist-constant12345 Banned Banned

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    Dude what have you got going through your mind, you know a bike will fall over on itself with no rider, you also know that a bike with a rider on in motion will remain in motion unless acted upon by external forces.
    That is why in super bike a rider can almost flatten out the bike around corners.
     
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  5. billvon Valued Senior Member

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    No, it's impossible. A bike with motion will exhibit circular motion since it a wheel has circular motion, not straight motion. The external forces are internal and are centripedal, and do not precess gyroscopically.
    Yes the bike is flat! It can't stand up. Thank you for proving my point.
     
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  7. theorist-constant12345 Banned Banned

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    What point?
     
  8. billvon Valued Senior Member

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    That that bike can't just ride around corners. You have to flatten it on its side and drag it. It is impossible to just ride it around corners. It's just physics.
     
  9. theorist-constant12345 Banned Banned

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    Not quite true, a bike can travel around corners at a low speed, but yes I agree at anything more than a low speed you have to flatten it out and has you put it, drag it.
     
  10. billvon Valued Senior Member

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    Definitely not true! A bike with motion will exhibit circular motion since it a wheel has circular motion, not straight motion. The external forces are internal and are centripedal, and do not precess gyroscopically. Thus the bike will fall over. In a few years you'll see I am right.
     
  11. theorist-constant12345 Banned Banned

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    To be honest I think we may be talking two different things, a bike travelling in a linear direction at a slow speed will turn when the handle bars are turned to turn the front wheel in the direction of turn, I suppose we may angle over slightly without noticing and not enough speed to Jack knife the bike or rider, but yes leaning into a curve is the way to ride a bike properly without being dislodged from your seat.
     
  12. billvon Valued Senior Member

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    Oh, you notice. You fall over instantly, since a bike cannot balance on just two points.
    Impossible.
     
  13. theorist-constant12345 Banned Banned

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    You firstly lean into a curve then shift your own body mass to compensate for the curve.

     
  14. billvon Valued Senior Member

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    You can't compensate for the curve. There are only two points of contact; you'll fall over. (Cool Photoshop video tho.)
     
  15. theorist-constant12345 Banned Banned

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    If you did not lean into the curve you would travel straight, trust me I have gone through several fences and bushes in my earlier years.
     
  16. billvon Valued Senior Member

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    Of course you did, since there is no way to remain upright on a bike. Your accidents provide good proof of that.
     
  17. theorist-constant12345 Banned Banned

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    Stay in a straight line and there is no problem remaining upright on a bike.
     
  18. theorist-constant12345 Banned Banned

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    a=E=m*4/3πr3*c

    b=E=m*4/3πr3*g
     
  19. billvon Valued Senior Member

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    Here's someone going in a straight line.

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    This proves it is impossible:

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  20. theorist-constant12345 Banned Banned

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    He has pressed his front break removing all the velocity.

    But in maths lets have a look at the maths there

    L =0.5 mass times velocity squared , no idea about the one, + 0.5 - some squiggles?

    is M momentum p and m mass
     
    Last edited: Feb 6, 2015
  21. theorist-constant12345 Banned Banned

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    Can you expand the calculation please I am not sure what everything represents.

    M and m both mass? m1 and m2

    mg mass gravity?

    cos 0 angle?
     
    Last edited: Feb 6, 2015
  22. theorist-constant12345 Banned Banned

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    L=0.5 Mv²+0.5 mv²

    should it not be just that?
     
  23. billvon Valued Senior Member

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    Sure.

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