10 Wacky and Unexpected Things Using Solar Power (Slideshow)
Photo: Facebook/The Sol Cinema Solar power has lots of potential as an alternative to fossil fuels, but some of the things we use it for make more sense than others: From solar-powered food carts, airplanes, and vending machines to solar-powered dog sweaters and beehives, read on to see which innovations are truly bright ideas -- and which ones are a little dim. 
