Subject:
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Re: M:Tron VS. Ice Planet.............
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Newsgroups:
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lugnet.space
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Date:
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Tue, 30 Nov 1999 18:43:47 GMT
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Viewed:
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601 times
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In lugnet.space, Christopher Lannan writes:
> In lugnet.space, Andrew Knowles writes:
> M-tron vehicles, while well equipped
> > for space travel (where it is also very cold) would be unable to function • well
> > in such a place.
> >
> > Andrew
>
> Nitpick---
>
> It is not cold or warm in space. It is a near vacuum. Hot or cold refers to
> the amount of kinetic energy in the particles of matter (I can't remember what
> that "shaking" is called maybe random kinetic energy?) There's just not enough
> bits of stuff in space for caloric energy to be transferred. The problem in
> space is actually getting rid of excess heat because solar radiation and such
> that hits an object (like a spacecraft) heats it up, but there is no where for
> that heat to dissipate. One way is a heat sink, another is a radiator fin that
> gets hot enough to radiate the heat out as em radiation.
That is assuming that you're close enough to a star to be getting that kind of
solar radiation. Out in deep space, say, Pluto's distance from the Sun, there
is basically no solar radiation. Thus, space acts as a giant heatsink and
pulls heat away from you at an alarming rate. That's why it appears very cold
in space. Definitions of "Hot" and "cold" are all relative anyway.
Regardless of how close or how far you are to a sun, you still need lots and
lots of insulation, both to keep your warmth in, and to keep solar radiation
from baking you like a potato in an oven.
Adrian (I guess the degree in Mechanical Engineering is helping after all)
--
http://junior.apk.net/~tremor/lego.html
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Message has 1 Reply:
Message is in Reply To:
 | | Re: M:Tron VS. Ice Planet.........
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| In lugnet.space, Andrew Knowles writes: M-tron vehicles, while well equipped (...) Nitpick--- It is not cold or warm in space. It is a near vacuum. Hot or cold refers to the amount of kinetic energy in the particles of matter (I can't remember what (...) (25 years ago, 30-Nov-99, to lugnet.space)
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