'Time reversal' research may open doors to future tech

'Time reversal' research may open doors to future tech: "ScienceDaily (Dec. 6, 2012) — Imagine a cell phone charger that recharges your phone remotely without even knowing where it is; a device that targets and destroys tumors, wherever they are in the body; or a security field that can disable electronics, even a listening device hiding in a prosthetic toe, without knowing where it is."