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Eric Giler demos wireless electricity

Eric Giler demos wireless electricity

Early visions of wireless power actually were thought of by Nikola Tesla basically about 100 years ago. The thought that you wouldn’t want to transfer electric power wirelessly, no one ever thought of that. They thought, “Who would use it if you didn’t?” And so, in fact, he actually set about doing a variety of things. Built the Tesla coil. This tower was built on Long Island back at the beginning of the 1900s. And the idea was, it was supposed to be able to transfer power anywhere on Earth. We’ll never know if this stuff worked. Actually, I think the Federal Bureau of Investigation took it down for security purposes, sometime in the early 1900s. But the one thing that did come out of electricity is that we love this stuff so much. I mean, think about how much we love this. If you just walk outside, there are trillions of dollars that have been invested in infrastructure around the world, putting up wires to get power from where it’s created to where it’s used. The other thing is, we love batteries. And for those of us that have an environmental element to us, there is something like 40 billion disposable batteries built every year for power that, generally speaking, is used within a few inches or a few feet of where there is very inexpensive power. So, before I got here, I thought, “You know, I am from North America. We do have a little bit of a reputation in the United States.” So I thought I’d better look it up first. So definition number six is the North American definition of the word “suck.” Wires suck, they really do. Think about it. Whether that’s you in that picture or something under your desk. The other thing is, batteries suck too. And they really, really do. Do you ever wonder what happens to this stuff? 40 billion of these things built. This is what happens. They fall apart, they disintegrate, and they end up here. So when you talk about expensive power, the cost per kilowatt-hour to supply battery power to something is on the order of two to three hundred pounds. Think about that. The most expensive grid power in the world is thousandths of that. So fortunately, one of the other definitions of “suck” that was in there, it does create a vacuum. And nature really does abhor a vacuum. What happened back a few years ago was a group of theoretical physicists at MIT actually came up with this concept of transferring power over distance. Basically they were able to light a 60 watt light bulb at a distance of about two meters. It got about 50 percent of the efficiency — by the way, that’s still a couple thousand times more efficient than a battery would be, to do the same thing. But were able to light that, and do it very successfully. This was actually the experiment. So you can see the coils were somewhat larger. The light bulb was a fairly simple task, from their standpoint. This all came from a professor waking up at night to the third night in a row that his wife’s cellphone was beeping because it was running out of battery power. And he was thinking, “With all the electricity that’s out there in the walls, why couldn’t some of that just come into the phone so I could get some sleep?” And he actually came up with this concept of resonant energy transfer. But inside a standard transformer are two coils of wire. And those two coils of wire are really, really close to each other, and actually do transfer power magnetically and wirelessly, only over a very short distance. What Dr. Soljacic figured out how to do was separate the coils in a transformer to a greater distance than the size of those transformers using this technology, which is not dissimilar from the way an opera singer shatters a glass on the other side of the room. It’s a resonant phenomenon for which he actually received a MacArthur Fellowship Award, which is nicknamed the Genius Award, last September, for his discovery. So how does it work? Imagine a coil. For those of you that are engineers, there’s a capacitor attached to it too. And if you can cause that coil to resonate, what will happen is it will pulse at alternating current frequencies — at a fairly high frequency, by the way. And if you can bring another device close enough to the source, that will only work at exactly that frequency, you can actually get them to do what’s called strongly couple, and transfer magnetic energy between them. And then what you do is, you start out with electricity, turn it into magnetic field, take that magnetic field, turn it back into electricity, and then you can use it. Number one question I get asked. I mean, people are worried about cellphones being safe. You know. What about safety? The first thing is this is not a “radiative” technology. It doesn’t radiate. There aren’t electric fields here. It’s a magnetic field. It stays within either what we call the source, or within the device. And actually, the magnetic fields we’re using are basically about the same as the Earth’s magnetic field. We live in a magnetic field. And the other thing that’s pretty cool about the technology is that it only transfers energy to things that work at exactly the same frequency. And it’s virtually impossible in nature to make that happen. Then finally we have governmental bodies everywhere that will regulate everything we do. They’ve pretty much set field exposure limits, which all of the things in the stuff I’ll show you today sort of sit underneath those guidelines. Mobile electronics. Home electronics. Those cords under your desk, I bet everybody here has something that looks like that or those batteries. There are industrial applications. And then finally, electric vehicles. These electric cars are beautiful. But who is going to want to plug them in? Imagine driving into your garage — we’ve built a system to do this — you drive into your garage, and the car charges itself, because there is a mat on the floor that’s plugged into the wall. And it actually causes your car to charge safely and efficiently. Then there’s all kinds of other applications. Implanted medical devices, where people don’t have to die of infections anymore if you can seal the thing up. Credit cards, robot vacuum cleaners. So what I’d like to do is take a couple minutes and show you, actually, how it works. And what I’m going to do is to show you pretty much what’s here. You’ve got a coil. That coil is connected to an R.F. amplifier that creates a high-frequency oscillating magnetic field. We put one on the back of the television set. By the way, I do make it look a little bit easier than it is. There’s lots of electronics and secret sauce and all kinds of intellectual property that go into it. But then what’s going to happen is, it will create a field. It will cause one to get created on the other side. And if the demo gods are willing, in about 10 seconds or so we should see it. The 10 seconds actually are because we — I don’t know if any of you have ever thought about plugging a T.V. in when you use just a cord. Generally, you have to go over and hit the button. So I thought we put a little computer in it that has to wake up to tell it to do that. So, I’ll plug that in. It creates a magnetic field here. It causes one to be created out here. And as I said, in sort of about 10 seconds we should start to see … This is a commercially — (Applause) available color television set. Imagine, you get one of these things. You want to hang them on the wall. How many people want to hang them on the wall? Think about it. You don’t want those ugly cords coming down. Imagine if you can get rid of it. The other thing I wanted to talk about was safety. So, there is nothing going on. I’m okay. And I’ll do it again, just for safety’s sake. Almost immediately, though, people ask, “How small can you make this? Can you make this small enough?” Because remember Dr. Soljacic’s original idea was his wife’s cellphone beeping. So, I wanted to show you something. We’re an equal opportunity designer of this sort of thing. This a Google G1. You know, it’s the latest thing that’s come out. It runs the Android operating system. I think I heard somebody talk about that before. It’s odd. It has a battery. It also has coiled electronics that WiTricity has put into the back of it. And if I can get the camera — okay, great — you’ll see, as I get sort of close… you’re looking at a cellphone powered completely wirelessly. (Applause) And I know some of you are Apple aficionados. So, you know they don’t make it easy at Apple to get inside their phones. So we put a little sleeve on the back, but we should be able to get this guy to wake up too. And those of you that have an iPhone recognize the green center. (Applause) And Nokia as well. You’ll see that what we did there is put a little thing in the back, to do that, and it probably beeps, actually, as it goes on as well. But they typically use it to light up the screen. So, imagine these things could go … they could go in your ceiling. They could go in the floor. They could go, actually, underneath your desktop. So that when you walk in or you come in from home, if you carry a purse, it works in your purse. You never have to worry about plugging these things in again. And think of what that would do for you. So I think in closing, sort of in the immortal visions of The New Yorker magazine, I thought I’d put up one more slide. And for those of you who can’t read it, it says, “It does appear to be some kind of wireless technology.” So, thank you very much. (Applause)


I'm glad this stuff is FINALLY getting some publicity. I remember reading about Tesla's inventions and the "Tesla Effect" when I was 20 years younger. He was able to power florescent lights for some distance. Can't even imagine what life today would be like if he was funded rather ostracized for his crazy ideas of free international transmission of power. They should have given Tesla more credit as he did his successful test in 1893.

not necessarily, "The Tesla effect is the application of a type of electrical displacement, i.e., the passage of electrical energy through space and matter, other than and in addition to the development of a potential across a conductor."

".. 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." Tesla

It's all fascinating to me. 🙂

True, but most devices don't use anything like 120VAC, they use more like 5 – 12VDC. TV's/Monitors, etc not included.

Also, you lose a lot of energy just from the transformers and those draw power constantly even when not charging or powering a device. It still could equate to a net power savings in the end ? I'm sure someone will do the math.

Oh yeah, I understand that, it's just Nicola Tesla had another idea to pass it through the earth. Unless my physics teacher was lying :3

I agree. we're more than 100 years ahead of that now. We could of all been driving wirelessly powered electric cars by now 😛

lol i had the same thoughts when i was 14 or so of why we cant make things wireless and use the magnetis fields???? maybe i shold be an inventor???

Nice talk, although it is not the truth, at least I don`t believe so, Tesla`s tower was perfect and he actually did transfer electricity wirelessly, the tower was brought down by J.P. Morgan-Tesla`s financier, who turned down the project as soon as he knew that he could not charge for the electricity transfered by tesla`s tower. and all this time, scientists have been looking for a way to modify Tesla`s invention in a way that they can put a meter on it and charge for it.

What would have stopped him from charging for it? Low production costs don't necessarily mean low rates, look at the cell phone industry.

I think that was just something easy and relatively cheap for him to get for a demo. Not that those things are cheap, but a lot less expensive (and more visually striking) than defibrillators.

How much energy do we lose by transmitting it through cables? Forgive my ignorance, I honestly don't know. I recall he said 50% was far less than we lost by using batteries, so he could at least use it in all areas of daily life in which we currently use batteries. That'd still cover quite a bit!

you all forgot about the car application, and also the wireless charging hub for all your applications in your house. I suppose in the future they could make a whole house in a magnetic field, and you just pay your subscription fee. The products don't have to charge automatically, you can click a button to start charging, and you still have your power on buttons

"There aren't electric fields here". Wrong: it is called electromagnetism for a reason.

"This is not a radiative technology". Wrong: electromagnetism is based on the phenomenon of electromagnetic *radiation*.

Electric fields and magnetic fields are closely related, which is why they are grouped into the study of electromagnetism. Electric currents induce a magnetic field, just as magnetic fields induce electric currents. In this case, electric current is generating a magnetic field, which is then collected and used to induce current again. The electric field remains in the source (the actual wire). I really hope you're not an EE.

With a moving magnetic field, there will also be electric fields induced in the destination, and any conductive material placed in the vicinity – for example a human body. To claim there are no electromagnetic fields involved is *highly* misleading. In a talk about safety, such inaccuracies are far-from reassuring.

A conductor moving in a magnetic field produces an electric field. There is no arguing with that. Your argument is not for such electrical fields not existing – it is an argument for them being relatively small. Fine – quantify them and then argue that they are at safe levels – but don't claim they don't exist!

Hmm how big we can make these things? Like powering the whole factory. Does the magnetic field couse any disturbance or malfunction on machines? This invention is briliant.

Well, he demoed it by powering an iPod (among other things), and as you probably know, iPods utilize a tiny hard drive to store information. It seemed to be unharmed.

Tesla was also working on "free" energy… I guess we will never know if he was successful or not.. and his inventions also gave birth to H.A.A.R.P.

The prospects of this tech are simply mind blowing….also I went to grade school with the MIT guy in the red shirt at 2:35 not surprised at all to see him in this field, no pun intended

u ppl need to learn about Nikola Tesla..this is nothing…it took us 100 years to move ONE INCH closer to what tesla could do…not2mention wut he wouldve been able2do(power several square miles)if he wouldnt of been stopped by power hungry money handlers

If I'm not mistaken, J.P.Morgan couldn't figured out how to charge people for usage of wireless power, and he stopped or bought project. But, that's mean that original project somewhere still exist. Tesla is….definitely my favorite scientist.

Absolutely J.P. Morgan put a stop to wireless power… And Tesla was awesome!

Wardencliffe tower was in Colorado Springs, CO I heard it was for sale for $1.6M but I don't know if that's just the building and land, or if the tower is actually still there…

The best part about it, was that you could harness electrical energy right out of the atmosphere during lightning storms!

I think a lot of techniques are taken by the army and thereby made top secret for the public. My question is ; is this secrecy still valid after so many years?

There are conspiracies about this field but that said, the solution given by these MIT researchers is not great enough. In fact, Nikola Tesla intended to provide long distance wireless power transmission of infinite and also, free energy and was not about charging and any nonsense following that. This technology was already available so, although this seems new its not worth the time for TED talks. Especially, one have to do the TED ideas for them to come across with any importance.

thanks for the reply. Than it's now the time to prepare ourselfs for it , for those who are interested in this matter.

Tesla never thought of a magnetic field. The technoligies involved are different from the usual electric field electricity. It is so far efficient for replacing a battery which makes it inetersting, it can replace wires that are meant to charge things other than provide direct full scale electricity. Besides technology always improve, so probably that efficiency would rise as the years go by. I'm sure during Tesla's times there were lots of conspiracy t.'s, and people who didn't want to believe

does some one know the efficiency of this mode of power transfer…. like how much of electricity dissipated is actually used…?
do we still have to switch it on and off to save electricity ….


from INDIA

@iyiyiy12345 wow you really didnt get it. you think that the only thing this technology could do for us is that we wouldnt have to plug cables anymore? omg get the big picture: no wires (not only in our houses, but in the streets, everywhere), no batteries (no environmental issues) and a much more efficient way of transfering energy. And all of that for much less work and money. You really dont see the potential of that?!

@grandexandi He was working on electricity sent like a radio wave, but when his backer realised he wouldn't be able to metre the electricity used, he withdrew his financial backing for the project which was then dismantled. Then Tesla's lab was destroyed & was ruined.

@xinlo huh? but wireless information has been a reality for quite some time now… i mean, radio, tv, phones… right now im sending this comment to youtube through my wireless internet connection

Yes but to send information you have to use a code and send bursts of energy. The way I see this technology is needing to warm up and such. I guess what I'm saying, witricity doesn't affect informational transfer…
Eh, maybe I just have have my thoughts screwed up. I did, after all, say that first one at like 2 in the morning where I live…

what I want to know is, what is the effect of this technology on devices that use magnetics to store data? Will a WiTricity transmitter that's strong enough to transmit energy at 8 feet efficiently be strong enough to corrupt data on my hard drive? Or will the fact that it only transfers energy to devices that have the same resonance mean there won't be an effect at all?

not sure if this is what you meant, but in the video he said the first experiment was 50% efficient over a 2m distance

i have been waiting for this for a while now. imagine no more extension cords, no lack of power points, possibly even electricity in places that are now way off the grid. I know it defeats the purpose, but imagine going camping in the bush and having power to heat water or for a radio without a generator. i think this will be awesome

induction yuck! tesla didnt use induction for wireless energy transfer at wardenclyffe tower he used scalar waves (longitudinal waves) out of near field non electromagnetic waves with 99.9% efficiency
there is a better way meyl (.) eu
please listen what this guy is doing is nothing new
imagine a world with wireless electricity everywhere it is possible spread the word

@rathat48 I have studied his work and the work of others for many years honestly you should see what prof meyl has done. And I know tesla was using induction for the magnifying transmitter that's obvious he has to, but actual single wire (or earth) transmission is scalar you'll see what I mean if you watch meyl's videos, unlike pathetic john hutchison which I believe is fake. Please be open minded about this.

@romxxii Also the problem of will it interfer with radio, tv, cellphones, laptops, etc. Also can they do it without having significant loss of power over a long distance?

In Frankenstein they got electricity out of the air cause by lightning and that was written hundreds of years ago but don't see people trying to utilize that is it possible to get enough electricity from that which is already in the air without having to produce it?

they didn't come up with shit, anyone that has a basic knowledge of a transformer unit knows that this is nothing but a stolen idea which is going to a dead end. They could reach a distance of 100 meters if they used big enough coils, that's not a wireless transfer because the losses "energy to efficiency" is higher then 50%. This fake "wireless transfer" has been used for 100 years inside every transformer, lowering volts from higher to lower values, ideal use because of the losses

@IdoCareForPeople It may dissipate in heat waveform, sice the magnetic field it generates can ionize molecules near it and make them move. I think we still have to do that, but we may already have a detector of full battery or just a voice recognoicer to turn it off if we say it….maybe…just suggesting…

@hydrolito Lightning strikes for such a short amount of time… it's like having a water pipe hooked up to your shower, and expecting to get a shower from it by throwing a bucket of water at the other end.

@lifemetall The theories aren't new but the use of it are. Like, you wouldn't bitch about BLT sandwiches because ham sandwiches already existed.

Don't the two coils need to be lined up in order to conduct to each other? Wouldn't that make this technology basically pointless except for static hardware such as desktop PCs or parked cars?

@elmstfreddie no, your comparison is wrong. I would bitch if someone would reintroduce ham sandwich as an original idea. And this is NOT a theory and the USE of it isn't new either, Opening most devices you will find the use of coils in a device called transformer, mobile phone chargers work on that principle for example

@lifemetall Yes I am well aware of transformers and their function. If this is so uncreative, why is it the first time I've seen it being used for wireless technology? And yeah argue all you want that technically they already work that way, but what I saw in this video was a new use of transformers I've personally never seen before and I'm sure many others haven't.

@elmstfreddie well OFC many haven't seen it before, we aren't all electricians.Reason why this is starting to be used now is because creators of these devices started ignoring the fact that coil wireless transfer has enormous loses in power to effectiveness ratio.. I strongly appose this because this is not what nikola tesla had in mind when he said "one day electricity will be transferred wirelessly", if we accept this we will stop working towards REAL wireless transfer

I'm fairly sure the power required to do this grows exponentially with distance. Could be OK if it's you neighbours that run the transmitter.

I think this is extraordinary, I really compliment this and other people that make all this wonderful things BUT never mind blessed people our governament will never allow this to go under production. We live in a shameless system that only see $ going in one direction. I feel very sorry that this will not go any where.

I've seen Evatran Plugless Power and Qualcomm Halo use similar technology for EVs. Making things commercially scalable is generally very slow, unless some very dedicated, smart and innovative entrepreneurs step into the business

Not good. BRAIN TUMOUR ALERT! BRAIN TUMOUR ALERT! Not necessary. Think "Risk Vs. Reward" and you'll begin to understand what I'm getting at.

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