Capturing energy from the wifi and converting it into electricity: a first device made

Along the road that leads to wireless electricity, or "witricity", there is an important new travel companion: a circuit developed by researchers at Duke University capable of capturing energy from sound and the WiFi signal with an efficiency close to that of solar cells. It is a small device that uses 5 copper and glass fiber conductors connected in a circuit through 5 channels made with a metamaterial. The circuit 'captures' energy from the aforementioned sources converting it into electrical energy... Read more

Within three years wireless electricity on the market

That immense, gigantic genius that was Nikola Tesla built a tower, the Wardenclyffe Tower, in the middle of Long Island: an installation, he said, capable of transmitting electricity without the need for wires. The project (with the associated mysterious fire) foundered among a thousand mysteries even though Tesla had already transmitted remote energy in other experiments, and since then the project was shelved. More than a century later it's still a big hunt: big companies (Toyota, Intel, Samsung, Foxconn) and small startups (WiTricity, ProxybyPower) have... Read more