Bras are supposed to be intimate wear that offers ample support to prevent the ravages of gravity, right? Well, what happens with all that swinging around during a workout that you could actually harvest kinetic energy generated so that they can be used to power a portable device like a cell phone or iPod instead? Researchers already have data on the physics of breast motion over the past 20 years, and these results were mostly used to design a more comfortable sports bra. What if that same data could be studied and developed further for a kinetic energy harvesting bra? That'd be really something, but it does require the lady wearing one to be pretty well endowed.