Today’s topic is research on creating a sustainable future. This discovery could render today’s landfill-bound batteries obsolete. Imagine if all you had to do to charge your iPod or your BlackBerry was to wave your hand, or stretch your arm, or take a walk? Intro theme and music by Kevin MacLeod. Creative Commons licensed audio from freesound.iua.upf.edu includes sounds by crk365, man, rutgermuller, Halleck and ljudman.