It's Saturday, it's noon; that can mean only one thing: It's time for Gizmodo University! We've got an action-packed lesson today as our intrepid Sparkle Labs host (and proud new papa) Ariel takes a look at switches, sensors, and detectors! More »

Read more: http://feeds.gawker.com/~r/gizmodo/full/~3/n8BhpCYG_Og/gizmodo-university-hittin