Have you ever wanted to visualize sound - its frequency and modulation? To see how noise is really waves - from shouts to whistles - using Sugar Activities? Then check out Kim Toufectis of the OLPC Learning Club DC explain the XO laptop's Measure Activity with the help of background commentators Kevin Cole and Wayan Vota:

If you too want to learn cool XO tips and tricks like this, and measure your own Sugar Activity exploration, be sure to join OLPC LC-DC's monthly email update to know when we'll have more fun with educational technology.