NEW: All-Natural Wifi (using WIRELESS Electricity!)

Imagine if you could power your cellular phone wirelessly, as if from thin air. Wireless electricity kind of sounds like something from a badly imagined and poorly written 1970s science fiction novel. Yet, in the year 2015 its actually a reality. Strangely enough, this new Wireless Electricity Wi-Fi-Power Makes Nikola Teslas Dream a Reality.

Nikola Tesla was a Serbian American electrical and mechanical engineer, physicist, inventor and futurist in the late 19th and early 20th centuries. He is best known for his contributions to the design of the alternating current (AC) electricity supply system. Immigrating to the United States in 1884, Tesla gained experience in telephony and electrical engineering prior to. Initially he worked with Thomas Edison before securing his own financial backers and setting up his own laboratories and companies to develop electrical devices. One of Teslas dreams was making wires redundant and he vigorously pursued his ideas of wireless lighting and electricity distribution in high-voltage, high-frequency power experimentation. As early as 1892 he announced the possibility of wireless communication through his devices and although he tried to put his ideas to practical use, his ill-fated attempt at intercontinental wireless transmission was left unfinished and upon his death on January 7 1943, his work fell into relative obscurity. About his work, John G. Trump, an M.I.T. professor, stated that Teslas thoughts and efforts were primarily of a speculative, philosophical and somewhat promotional character often concerned with the production and wireless transmission of power; but did not include new, sound, workable principles or methods for realizing such results. However, since the 1990s there has been a resurgence in interest in Tesla and his work in popular culture and it Teslas ideas and theories which have helped pave the way for future electrical engineers, inventors and new age futurists alike.

Todays technology is what Teslas dreams were made of. A new WiFi device can charge electronic devices from up to 28 feet away using the WiFi signal that comes from a wireless router. It literally picks up the energy out of thin air. Vamsi Talla, Bryce Kellogg and team describe how their new technology works: essentially their PoWiFi tricks routers into sending out constant RF signals that are received by an antenna and then converted into DC power with a rectifier. A DC-DC converter than increases the voltage to fit the sensor and microcontrollers requirements. Talla states if we can repurpose existing infrastructure for power delivery as well, then we can actually enable wireless power delivery in homes and offices.

While this technology isnt actually as new as what we may think, what is new is the PoWiFis ability to function using existing WiFi infrastructure and transmit, at the same time, both power and data using the same RF signal. The team is optimistic that eventually everyday objects could actually communicate with each other and that one day, for example, your couch could tell you where you dropped your car keys. How cool is that?!


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