uBeam – a new take on Wireless Electricity. Tesla 100 years later
“Instead of depending on electrodynamic induction at a distance to light the tube . . . [the] ideal way of lighting a hall or room would . . . be to produce such a condition in it that an illuminating device could be moved and put anywhere, and that it is lighted, no matter where it is put and without being electrically connected to anything.
I have been able to produce such a condition by creating in the room a powerful, rapidly alternating electrostatic field. For this purpose I suspend a sheet of metal a distance from the ceiling on insulating cords and connect it to one terminal of the induction coil, the other terminal being preferably connected to the ground. Or else I suspend two sheets . . . each sheet being connected with one of the terminals of the coil, and their size being carefully determined. An exhausted tube may then be carried in the hand anywhere between the sheets or placed anywhere, even a certain distance beyond them; it remains always luminous.” – Nikola Tesla
Wireless electricity. Wouldn’t that be great? You could put a lamp anyplace in the room without having to plug it in the wall.
How about charging a cell phone just by placing it anywhere in a room. Another use for wireless electricity.
How about wireless electricity at public places? Starbucks, for example Suppose that just by being inside the Starbucks store you could charge your laptop, cell phone, tablet, or other device that you just happened to lay on a table or chair?
Nikola Tesla had the vision of this capability more than 100 years ago.
So a couple of recent women graduates (undergrads) from University of Pennsylvania came up with a proof of concept of how this could work and become a commercial product.
But, as you will see, these gals came up with a novel approach. While Tesla tried to do wireless electricity through the “direct route” these undergrads took sort of a detour making use of something that is hidden in plain sight to assist with the transmission. But, the end result is the same – delivering electricity over a distance without wires.
Take a look at the video showing the proof of concept of uBeam
Bonus – Schematic diagrams included. Build at your own risk!
Spending too much money on natural gas to heat your home? From General Electric Research 1934
Previous research at MIT