Smart phones can do more and more these days. The technology behind them is fascinating. Here's a video that tells you how they know up from down. Glancing through Lifehacker's Smartphone blog, you can also find ways to amplify the speakers by putting the phone in a pitcher, instructions on how to make a phone stand from the box it came in, and more. You can find out all sorts of technology information in unlikely places online. Check out YouTube and Lifehacker again if you're ever curious about anything.