How to Clean Out Your Overflowing Hard Drive and Get Your Space Back

Hard drives get messy. You save files and forget them, download huge chunks of data that pile up, and change your naming schemes a hundred times. It's spring, though, so why not do a little tidying up? » 5/30/13 5:19pm 5/30/13 5:19pm

California Builds the World's Tallest Solar Collector

The US government holds vast tracts of public lands—more than a 654 million acres, in fact—for public use such as national parks as well as for military use like test ranges and proving grounds. But most of the time, much of that land is left to rot when it could be producing clean solar energy for our ever-increasing … » 3/18/13 11:30am 3/18/13 11:30am