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

Is it true that the skies in the Southern Hemisphere appear brighter and clearer than Northern Hemisphere skies? I have read this several times from various unscientific sources. If so, what is the reason?
posted by vizsla on Sep 10, 2007 - 7 answers