Is Wireless Power Closer Than We Think?
Tesla Would Be Proud
A few years back, Marin Soljačić was driven from bed by the insistent beeping of his mobile phone. But it wasn’t beeping for him to answer it, it was beeping for him to plug it in. Since that night, the assistant professor of physics at MIT, has been thinking about ways to start his phone charging as soon as he enters his home - without the need for plugs or wires.Jennifer Chu at Technology Review writes that Soljačić considered using radio waves, but found that most of their energy would be lost in transmission. Targeted methods like lasers require a clear line-of-sight and could be dangerous for anything in their way. According to Chu, he eventually settled on a phenomenon called magnetic resonance coupling, in which two objects tuned to the same frequency exchange energy strongly but interact only weakly with other objects.
“A classic example is a set of wine glasses, each filled to a different level so that it vibrates at a different sound frequency. If a singer hits a pitch that matches the frequency of one glass, the glass might absorb so much acoustic energy that it will shatter; the other glasses remain unaffected.”
Now, Soljačić and his team have successfully demonstrated the use of magnetic resonance coupling to power a 60 watt light bulb from a distance of roughly two meters - and through a thin wall.
The most effective setup, thus far, transfers power over a distance of two meters with about 50 percent efficiency. The team is looking at other materials to decrease coil size and boost efficiency. “While ideally it would be nice to have efficiencies at 100 percent,” says Soljačić. “So realistically, 70 to 80 percent could be possible for a typical application.”
While some wireless power technologies have emerged in the marketplace, Soljačić’s technique differs in that it might one day enable devices to recharge automatically, whenever they come within range of a wireless transmitter.
Q: Why was Tesla right about the world’s power grid but wrong about his wireless vision?
Q: Why was JP Morgan, Edison and the other usual cast of super rich character’s so determined to ensure Tesla received no further funding to complete his Long Island tower experiment… in other words, why didn’t they allow him to fail after JP Morgan asked Tesla “where do I put the meter”?
Q: If Tesla’s wireless / beam energy is so inefficient and not useful, why have we funded and relied on it for military applications related to HAARP? (SDI, sonar to submarines, weather modification, Tesla Howitzer)… does this mean that his technology is only efficient for destructive military applications? If so, please explain.
can we have the circuit diagram of this wireless power trassmission?
Uhm.. if you put two resonating bodies in the room with the “originator”, will they only resonate half as much? Does your radio “suck energy” from the airwaves? And if there is sold to many radios, then you have to crank up the signal?
It seems to me that energy is not lost into nothingness, but scattered into a sea of energy. And we simply don’t know where to look for it. The wires are a track for the energy. But maybe that just diminishes the energys potential. However it is making it more traceable, accountable and predictable. But is that what the energy wants? Seemingly, the energy prefers the wires, but it needs constant feeding from the outside. Captured it gets vampiric. Unlike in the wild.
if you guys want a whole zip file packed with teslas patents you can get a real idea into the mindset of a pioneer, and maybe futureengineers can help us off our reliance on the man! there’s a fuel all around us that needs to be unlocked!
post whether you want to the ZIP and ill post the link