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Author Topic: why are spacesuits white, and not black?  (Read 2568 times)

paul.fr

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why are spacesuits white, and not black?
« on: 17/05/2007 11:34:28 »
why are spacesuits white, and not black? Surely it is cold out in space, so shouldn't the spacesuits be black to absorb heat?
« Last Edit: 17/05/2007 11:41:46 by paul.fr »


 

Offline daveshorts

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why are spacesuits white, and not black?
« Reply #1 on: 17/05/2007 12:04:08 »
Space around the earth isn't really cold, the real problem is that the temperature isn't very well defined. If you are in the sun you have 1kW of energy hitting you per square metre, and if you are in the shade all you can see is interstellar space which is significantly below -200&degC so you just radiate heat.

Black both absorbs and emits light (and infra red) really well so if your suit was black, when you were in the sun you would get very very hot, and if you were in the shade you would loose heat fast.

If it is white, you gain less heat in the sun, and loose less in the shade, which is makes life a lot easier to deal with.
 

Offline DoctorBeaver

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why are spacesuits white, and not black?
« Reply #2 on: 17/05/2007 13:32:45 »
I was gonna say that  :D
 

Offline that mad man

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why are spacesuits white, and not black?
« Reply #3 on: 17/05/2007 21:37:53 »
Probably helps with the visuals too as white against a dark background is easier to see.



 

Offline JimBob

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why are spacesuits white, and not black?
« Reply #4 on: 18/05/2007 01:57:00 »
I was gonna say that  :D

Why are you away from your "couch of perpetual pleasure?" Or did you get a laptop?

 [O8)] yeh, bro!

 

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why are spacesuits white, and not black?
« Reply #4 on: 18/05/2007 01:57:00 »

 

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