![]() ![]() ![]() Various methods of Transmitting power wirelessly have been known for centuries. Wireless power transmission is not new for us. The physical phenomenon of longlifetime resonant electromagnetic states with localized slowly-evanescent field patterns used to transfer energy efficiently over non-negligible distances like 8 times the radius of the coil, even in the presence of extraneous environmental objects was experimentally demonstrated. They have dubbed this technology as “witricity”. In 2006 researchers at Massachusetts Institute of Technology led by Marine Soijacic discovered an efficient way to transfer power between coils separated by a few meters. ![]() Some exist only as theories or prototypes, but others are already in use. Since then many researchers have developed several techniques for moving electricity over long distances without wires. Tesla's work was impressive, but it did not immediately lead to wide spread practical methods for wireless power transmission. Wireless power transmission is not a new idea, Nikola Tesla proposed theories of wireless power transmission in the late 1800s and early 1900s. The technology used for wireless power transmission is known as witricity. ![]()
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