On Kickstarter, IndieGogo, and other crowdsourcing sites, inventors seek funding from the public. But how do you know if a project is worth backing if nobody has ever tried it out? In this Yahoo Tech exclusive, we test the prototypes and tell you which inventions have promise.
We Try Bluesmart, a Travel Bag That Can Weigh Itself and Charge Your Gadgets
The Triatholight: A 300-Hour Flashlight That Seems Too Good to Be True