SciAm's George Musser takes a crack at explaining one of the most complex (and controversial) concepts in all of physics — all in less than 26 seconds. Not bad, Musser. But can you do it for M-theory? What about those 11 dimensions of vibrating strings?
Lots of people around the country are outfitting their houses with energy-harvesting solar panels, and not just for the environment, but for government kickbacks, as well. Some companies will even foot the bill and install your panels for free, provided they can collect on the federal subsidies.