Monday, March 17, 2014

CNN Week 5

In "Wireless Electricity" by Katie Hall she says that she was shocked the second she saw it: a light-bulb glowing in the middle of a room with no wires attached. Looking back, it was a crude experiment, she remembers: a tiny room filled with gigantic copper refrigerator coils(the kind you'd see if you cracked open the back of your freezer). The challenge now is increasing the distance that power can be transferred efficiently. This distance Hall explains is linked to the size of the coil, and WiTricity wants to perfect the same long-distance transfers to today's small-scale devices.

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