A few years ago WiTricity’s former CEO, Eric Giler, used a standard routine to show wireless charging could be safe. With WiTricity’s prototype wireless charger in one hand and a lightbulb in the other, he’d stand up in front of a crowd, put his head between the two and turn on the light. This year, at the Consumer Electronics Show in Las Vegas (CES 2015), dozens of companies are demonstrating wireless power devices.
