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Thread: cold movement

  1. #1 cold movement 
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    just thinking about the Bose-Einstein. condensate and how it relates to heat and believe it or not the steam engine and movement

    if 3 deg above absolute zero is the temp of outer space , and we have the ability to take cold to a very low sub 1 degree absolute zero , why can we not use this difference to drive movement?

    i know shit about anything but i was watching a doco and it seems to me if movement is dependent on a difference in temp , why is the same not true in space , even if the temp is only 3 deg above zero , we can produce colder and as the doco states heat travels from hot to cold , eg space will suck us along at little cost to us

    thus if space is hot compared to our cold zone should this not react the same way and move us to the warmness and an unendless form of movement dependent on our ability to keep below 3 deg above absolute zero

    this will forever be called the morrow theory after me

    peter morrow 29/5/08


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  3. #2  
    Administrator KALSTER's Avatar
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    Unfortunely it takes more energy to cool something to Bose-Einstein condensate temperatures than the difference between 1 and 3<sup>o</sup>K. IMO


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  4. #3  
    Forum Masters Degree bit4bit's Avatar
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    thus if space is hot compared to our cold zone should this not react the same way and move us to the warmness and an unendless form of movement dependent on our ability to keep below 3 deg above absolute zero
    Well, if you have objects of different temperatures in contact, heat will move from the hotter to the colder object, until they reach thermal equillibrium, but this doesn't mean that the hot object will move towards the cold object. Usually to extract energy from a temperature difference, a thermal expansion of a gas is made use of to drive a turbine, but at those temperatures no gas exists naturally. There's also the Seebeck effect, but it's too inefficient to be practical.
    Chance favours the prepared mind.
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