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Originally posted by Zykloner personally think Tesla is a qwasi scientist with no real good theories.
Originally posted by N_15L_S01 What particularly interests me is though is rumors of Telsa creating a way to transfer energy without wires.
Small, battery-powered gadgets make powerful computing portable. Unfortunately, there's still a continual need to recharge the batteries of phones, laptops, cameras, and MP3 players by hooking them up to a tangle of wires. Now researchers at MIT have proposed a way to cut the cords by wirelessly supplying power to devices.
"We are very good at transmitting information wirelessly," says Marin Soljačić, professor of physics at MIT. But, he says, historically, it's been much more difficult to transmit energy to power devices in the same way. Soljačić, who was a 2006 TR35 winner (see "2006 Young Innovator"), and MIT colleagues Aristeidis Karalis and John Joannopoulos have worked out a theoretical scheme for a wireless-energy transfer that could charge or power devices within a couple of meters of a small power "base station" plugged into an electrical outlet. They presented the approach on Tuesday at the American Institute of Physics's Industrial Physics Forum, in San Francisco.
The idea of beaming power through the air has been around for nearly two centuries, and it is used to some extent today to power some types of radio-frequency identification (RFID) tags. The phenomenon behind this sort of wireless-energy transfer is called inductive coupling, and it occurs when an electric current passes through wires in, for instance, an RFID reader. When the current flows, it produces a magnetic field around the wires; the magnetic field in turn induces a current in a nearby wire in, for example, an RFID tag. This technique has limited range, however, and because of this, it wouldn't be well suited for powering a roomful of gadgets.
To create a mid-range wireless-energy solution, the researchers propose an entirely new scheme. In it, a power base station would be plugged into an electrical outlet and emit low-frequency electromagnetic radiation in the range of 4 to 10 megahertz, explains Soljačić. A receiver within a gadget--such as a power-harvesting circuit--can be designed to resonate at the same frequency emitted by the power station. When it comes within a couple of meters of the station, it absorbs the energy. But to a nonresonant device, the radiation is undetectable.
Wireless Power Transmission
Nineteenth-century physicist and engineer Nikola Tesla experimented with long-range wireless energy transfer, but his most ambitious attempt - the 29m high aerial known as Wardenclyffe Tower, in New York - failed when he ran out of money.
Others have worked on highly directional mechanisms of energy transfer such as lasers. But these required an uninterrupted line of sight, and therefore not good for powering objects around the home.
A UK company called Splashpower has designed wireless recharging pads onto which gadget lovers can directly place their phones and MP3 players to recharge them. But the pad is in direct contact with the device.
Now MIT researchers have outlined a relatively simple system that could deliver power to devices such as laptop computers or MP3 players without wires, reports the BBC.
Albert Einstein never liked entanglement. It seemed to run counter to a central tenet of his theory of relativity: nothing, not even information, can travel faster than the speed of light.
In quantum mechanics, all the forces of nature are mediated by the exchange of particles such as photons, and these particles must obey this cosmic speed limit. So an action "here" can cause no effect "over there" any sooner than it would take light to travel there in a vacuum.
But two entangled particles can appear to influence one another instantaneously, whether they're in the same room or at opposite ends of the Universe.
Einstein called this ‘spooky action at a distance’ - spooky because there is no known mechanism for such an interaction, and because it would entail that things can be affected by events which, in some frame of reference, haven't happened yet.
Originally posted by zorgon
Originally posted by N_15L_S01 What particularly interests me is though is rumors of Telsa creating a way to transfer energy without wires.
Well the story goes that Tesla creates a car that used a radio like device in the car and a transmitter on the power plant... to run an electric motor by converting the radio waves...
Westinghouse came and looked at it and asked "Where can I put the meter on that?" and that was the end of that...
Now think about it... ever tried climbing a radio tower? Don't you will get fried... Microwave ovens... no doubt the energy is there...
But lets look at the common radio... we send out a radio signal through the air... and a receiver converts the en
Originally posted by mrRviewer
light up a florescent bulb exposed to the transmission,