Why Did We Get Into Space

Discussion in 'Science & Society' started by Orleander, Apr 28, 2009.

  1. Sophergeo Banned Banned

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    I wish mainstream scientists and some of the posters here were half as wise as you are.
     
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  3. stereologist Escapee from Dr Moreau Registered Senior Member

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    685
    Sure. I posted the answer already.

    A plane that is heavier than air experiences a number of forces one of which is gravity. The same is true for lighter than air flying machines. A simple model for the forces involves thrust, lift, drag, and gravity.

    The formula you provided shows how to calculate one of these forces. To fly a plane must have a net force that overcomes the forces of gravity and drag.
     
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  5. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    So economists are gravitational economists?
    Pig farmers are gravitational pig farmers?
    Sloppy terminolgy requires correction.

    Rubbish, F = G x m1m2/r^2 has nothing whatsoever to do with his comment on the feasibility of heavier than air machines.
    It was an engineering comment made by a non-engineer.
     
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  7. Sophergeo Banned Banned

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    Why did Lord kelvin think heavier than air flying machines are impossible?

    What forces are you talking about? The electromagnetic force? But I thought gravity is the dominant force in the universe.
     
  8. Sophergeo Banned Banned

    Messages:
    37
    Still waiting to hear why you think Lord Kelvin rejected gravitation and why he thought heavier than air flying machines are impossible.

    Still waiting to hear why you think Lord Kelvin rejected gravitation and why he thought heavier than air flying machines are impossible.
     
  9. stereologist Escapee from Dr Moreau Registered Senior Member

    Messages:
    685
    Again, this is all misleading.

    The is wrong. The moon does fall towards the Earth. That is only one of the forces acting on the moon. The moon is in motion. There is a force tangential to its motion. The net result is a moon in orbit.

    Gravity acts on ozone. Why have you decided that it defies gravity?

    Help me out here on your thinking. What do you think a cloud is?

    To assist you in understanding that gravity works on everything including air, water, people, mountains, etc. please tell us why you think air defies gravity?
     
  10. stereologist Escapee from Dr Moreau Registered Senior Member

    Messages:
    685
    I spelled them out already in a previous post.
     
  11. Sophergeo Banned Banned

    Messages:
    37
    Facts are misleading?

    Why are facts misleading? Because they contradict your occult 17th century hypothesis?

    The moon falls away from the Earth at 3.8 cm per year. It's a fact. Laser Ranging from the Apollo Program.

    You mean electromagnetism is a force acting on the moon? But I thought gravitation is the dominant force in the universe. Nevermind the fact that electromagnetism is 2 x 10^39 times more powerful than the alleged force of gravitation.

    Relative to what? Relative to the Earth, the moon is in motion away from the Earth at 3.8 cm per year.

    How do you know that?

    Ozone is found at the highest levels of the atmosphere which defies gravity. Since the atmosphere is a mixture, ozone which is heavier than oxygen should fall to the Earth by specific gravity. But it does not.

    Water is heavier than nitrogen.

    The air is made of nitrogen, oxygen, argon, and carbon dioxide, and trace compounds.

    Argon is the heaviest and should fall to the bottom, but defies gravity because it is 1% of the atmosphere at any altitude.
     
  12. MacGyver1968 Fixin' Shit that Ain't Broke Valued Senior Member

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    7,028
    Corrected.

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    Come on Oli...he slow-pitched that...your definitely slacking on the burns.
     
  13. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    I haven't said anywhere that he rejected gravitation.
    And I have stated that he made a comment on engineering feasibility and that it was an error in judgement.
    Which parts don't you understand?
     
  14. Sophergeo Banned Banned

    Messages:
    37
    Well I'm glad you admit Lord Kelvin believed in gravitation. And it is for this reason (F = G x m1m2/r^2) he didn't think heavier than air flying machines are possible. Still waiting for anyone to demonstrate otherwise.
     
  15. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    Nothing to "admit", it was never in dispute as far as I was concerned.

    And no, it wasn't for that reason, it was an ENGINEERING judgement made erroneously.
     
  16. MacGyver1968 Fixin' Shit that Ain't Broke Valued Senior Member

    Messages:
    7,028
    It was kind of a dumb thing to say on Lord Kelvin's part. There are many examples in nature of heavier than air flight...so he had to know it was possible...just whether or not man could copy natures engineering. Obviously he got it a little wrong.
     
  17. Sophergeo Banned Banned

    Messages:
    37
    It was only dumb of him once you recognize the statement is based upon an even dumber claim by Isaac Newton, namely F = G x m1m2/r^2.
     
  18. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    Kinda dumb?
    History is replete with examples.
    “640K ought to be enough for anybody.” Bill Gates
    “The bomb will never go off. I speak as an expert in explosives.” Admiral William Leahy
    "It will be years--not in my time--before a woman will become Prime Minister."
    Margaret Thatcher
    etc etc...

    Oh, and it wasn't Kelvin's only mistake...
    Radio has no future.
    X-rays will prove to be a hoax.
     
  19. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    Sources for those quotes?
    The only ones that come up on Google are posts by you in previous incarnations.
     
  20. stereologist Escapee from Dr Moreau Registered Senior Member

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    685
    Obviously Sophergeo you already know what you post is false. Very funny.

    I can play this game, too.

    What facts?

    And where is it falling to?

    But the nuclear force is stronger.

    How do you know that?

    When did you measure this?

    Why?

    That was so much fun writing nonsense. I bet you get a kick out of it, don't you?
     
  21. Sophergeo Banned Banned

    Messages:
    37
    The moon is moving away from the Earth at 3.8 cm per year. Any questions?

    I can tell you where the moon is not falling to, and that's towards the Earth.
     
  22. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    Ah, thank you.
    I notice you misquote it to make your point;
    Since I don't have the book I can't comment.
    But could it possible you've also misquoted that?

    Hmm, also not quite supporting your view: Gardner's comment is about Velikovsky's invented forces - i.e. his interpretation, rather than the accepted attributes.
     
    Last edited: May 12, 2009
  23. Oli Heute der Enteteich... Registered Senior Member

    Messages:
    11,888
    You really do have comprehension problems don't you?
    Of course it doesn't.
    Which doesn't make your point.
    You were misleading if not deliberately dishonest with that quote, I'm done with you.
     

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