What domestic devices can be operated effectively on solar power these days? Know any interesting alternative uses? Wide open question.
posted by vizsla on Dec 28, 2007 - 11 answers

if heat and light can be turned into usable energy, why don't we launch some collectors to orbit the sun and gather truck loads of the stuff that is otherwise dumped into space, then beam it home via microwave? [more inside]
posted by Tryptophan-5ht on Aug 20, 2006 - 25 answers

I'm looking for an app that will calculate how much sun different parts of my yard get over the year. [more inside]
posted by obiwanwasabi on Apr 10, 2006 - 7 answers

Why aren't animals solar-powered? [more inside] [more inside]
posted by jpoulos on Mar 12, 2004 - 30 answers