There is no drag in space

Discussion in 'Astronomy, Exobiology, & Cosmology' started by nanoboy, Jun 29, 2003.

  1. nanoboy Registered Senior Member

    Messages:
    59
    There is no drag in space
    Of course it's supposed to be a sci-fi game, it's not realistic, but how many games can u count out there that are realistic? Most regular air combat simulation games like the Mig-29, Janes Combat are not realistic anyways
    The trouble with the real world space combat is that it isn't all that fun... or so the theory and implementation in space combat games up to now has indicated. Why is that? Well because in space there is no "drag" so once you accelerate to a give speed you will coast at that speed and direction forever. So, in order to turn a space ship around and fly in the other direction you have to accelerate "backwards" until you stop and then keep on accelerating until you are up to speed. The implications for dogfighting are that if you have high speed you simply fly through the furball and keep going... minutes or hours later once you stop and come back the battle might be over or you might be out of fuel!

    nanoboy
     
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  3. wesmorris Nerd Overlord - we(s):1 of N Valued Senior Member

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    good point

    similarly, there's no dodging a laser beam.
     
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  5. EI_Sparks Registered Senior Member

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    Hmmm. Well, there could be drag - how low's your orbit?

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  7. nanoboy Registered Senior Member

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    i c. u mean how close to the atmosphere u are?

    i c. u mean how close to the atmosphere u are? I thought that there was a level above earth without any drag.

    nanoboy
     
  8. Vortexx Skull & Bones Spokesman Registered Senior Member

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    Dredd! Now how am I supposed to get that pigeon in space?
     
  9. bigjnorman Registered Senior Member

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    you could have more pigeons than could fit in the atmosphere.....then you'd have a pigeon hole.
     
  10. twobob Registered Senior Member

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    Gravity is supposed to be infinate, what a drag.

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  11. Gifted World Wanderer Registered Senior Member

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    The atmoshere thins at some point, I think about 500 mi, to a point at which jets can't breathe and airfoils don't provide lift. It's about here that's considered the border.
     
  12. Teg Unknown Citizen Registered Senior Member

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    672
    Wesmorris

    That is false! It is conceivable that there exists a mode of transmission faster then light capable of then detecting the beam early. Of course then laser beams are also hypothetical, modern laser=weak.
     
  13. Pete It's not rocket surgery Registered Senior Member

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    Sure! It's also conceivable that there's an instant action weapon that's not constrained by the speed of light. Dodge that!
     
  14. Blindman Valued Senior Member

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    Space is not a perfect vacuum. Dust, gas, and solar wind do provide some drag.. This drag is very small.. One of the great games of old was Asteroids, there was no drag in that at all.
     
  15. bigjnorman Registered Senior Member

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    entanglement

    I think that the possibilities of aciton at a distance has yet to be realized. through entanglement, the quantom superpositions of a particles that interact with each other are changed, when this happens, you can change the properties of all the particles instantaniously just by interacting with one of the particles, no matter how far the particles are from each other.
     
  16. Ertai Registered Senior Member

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    True about entanglement..

    Not true about the rest..
    You entangle a couple of particles... send one to the target..
    Then at the distance you change yours and the other will change too... You can get some type of instant bomb ignition or somethin

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  17. Pete It's not rocket surgery Registered Senior Member

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    *Disclaimer*
    I'm no expert. It is quite possible that I am very wrong. But here's my understanding of the situation anyway:


    It does not appear to be possible to transmit information via quantum entanglement.

    Lets say you have an entangled pair. One is in a bomb detonator, one is in your lab.

    Each of the pair is in a superposition of two states, X and Y. You know that when then entanglement collapses, one of the pair will be X, and the other will be Y.

    But there is no way of telling which will be which before the event, and there is no way that that the detonator can check to see if the pair is still entangled.
     
  18. bigjnorman Registered Senior Member

    Messages:
    158
    a little more complicated than that

    I am reading my first book on entanglement right now and i'm about half way through it.....
    what I understand of it is that entanglement is not just a "perk" of quantum physics, it is really the underlying concept of quantum reality and is very closely tied to quantum superpositions,

    each a particle in the entangled state would be in a quantum superposition of : (every possible state the entangled particles could possibly be in at the time of being measured)

    Now, with this a single entangled particle can be manipulated to where (the total # possible states at measurements) is decreased. when this happens the set of all possible states that the remaining particles could be in at measurement is also changed, instantaniously.

    Ex) "2 photons leaving an atom when electrons change enegy levels are entangled forever and a change in one of the particles will instantaniously cause a change in the other."
    Aczel - "ENtanglement"


    All it really means is that the entangled particles share a correlation between probabilities. Although classical 'information' possibly can't be sent faster than light, there are great implications of entanglement, from quantom computers, encryption, and teleportation
     
  19. Automan Mostly harmless. Registered Senior Member

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    Just a little ditty to cheer everyone up.

    I teleported home one night, with Ron and Sid and Meg. Ron stole Meggy's heart away, and I got Sydney's leg.'
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