26 Nov '12, 6pm

Space — the Final Junkyard? via @DoDBuzz

torquewrench November 26th, 2012 at 5:00 pm The DOD have become interested in the solar power satellite concept in recent years. SPS is a great way to efficiently gather solar power. It’s unaffected by night and weather and changing angle of incidence, as constantly afflict terrestrial solar systems. And the incoming energy isn’t diminished by first transiting tens of kilometers of heavy atmosphere. The International Space Station runs on cheap abundant space solar power. So do all modern satellites. (Decades ago, some satellites with very high internal power requirements were actually nuclear powered.) But what really interests DOD is the concept for how the energy that is gathered on orbit would be then retransmitted to the surface. You need to re-emit it as a beam at certain gigahertz frequencies, because those frequencies are the least affected by atmospheric losses in...

Full article: http://www.dodbuzz.com/2012/11/26/space-the-final-junkyard/

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