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Re: Black & White Question



Hi Rick,

Ever seen a Radiometer?
http://www.edmundscientific.com/Products/ListProducts.cfm?catid=126

Here's an explanation of how it works, at least terrestrially. Do the
orbiters rely on the same 'trace' gas presence? Wonder how closely
related to solar sails this is...
http://lecture.lite.msu.edu/~mmp/kap24/Radiometer.htm

73

Rick Denis wrote:
> 
> one thing i've allways wondered is why is it that black and white painted
> carpenter's rule antennas (one color on each side) makes a satellite spin.
> how does that work and does it have to do with heat absorption/emisitivy?

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