Voice-based phone recharging
Tuesday, May 10, 2011 - 13:30
in Mathematics & Economics
(PhysOrg.com) -- The noise that we produce can be a lot of things. It can be a valid means of communication. It can be an annoyance when you are trying to get to bed at night. It can be a migraine waiting to happen, and depending on who you ask, it can even be a form of pollution. But, could that annoying loud man next to you on the subway, or your can't keep it down neighbors TV, be a potential source of renewable-energy?