Eric Giler demos wireless electricity
Vložit
- čas přidán 12. 08. 2024
- www.ted.com Eric Giler wants to untangle our wired lives with cable-free electric power. Here, he covers what this sci-fi tech offers, and demos MIT's breakthrough version, WiTricity -- a near-to-market invention that may soon recharge your cell phone, car, pacemaker.
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at www.ted.com/translate. Watch a highlight reel of the Top 10 TEDTalks at www.ted.com/index.php/talks/top10 - Věda a technologie
From an article in Gizmag dated 8/20/09, entitled: Korean Electric Vehicle Solution - Online Electric Vehicle (OLEV) from KAIST... the OLEV picks up charge using a non-contact magnetic charging method (where a power source is placed underneath the road surface and power is wirelessly picked up on the vehicle itself) so it doesn't matter if the car is moving or parked, it still receives power... up to 80% power conveyance with a 1cm gap between the vehicle and the power line.
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
I've been waiting for this video since I read about it. Thank you for this and EVERY other one, TED!
I love this. I'm curious about the distances? What about transmission from the power plant to the residence? Can you set up relays to get transfer over long distances?
This seems like such an efficient use of a new discovery, I wonder how long it will take for the market to pick it up. Absolutely fantastic.
@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?
Fabulous :) The beginning of something new and hopefully more efficient.
@IdoCareForPeople
not sure if this is what you meant, but in the video he said the first experiment was 50% efficient over a 2m distance
was a response to a post about a korean version of this. he quoted an article saying the car korean model of car is powered by passing over power transmitting cables hidden in the road from a distance of 1cm.
When i was in Europe around 2011, I took a picture of a Tesla roaster but didn’t know about the brand
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!
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 ....
regards,
from INDIA
Looks good. Hopefully we can have this in our homes soon.
@grandexandi
Wouldn't you still need chords for information transfer? This thing doesn't send information, does it?
Wow, this is very impressive... hrm, about the Westinghouse thing... I would think you could meter it for the car-charging element. If you drove into the garage and the car's approx 3000lb weight started the process it could meter for the time current ran into the first coil. Heck, even if the houses passive power ran a small computer that confirmed if the car needed charging before it started to run the charger to avoid excess billing.
he was the first to work on wireless electrical transmision. you ever play with a tesla coil? there are some fun youtube vids. Also there was no radio before tesla either. Marcone was actually held in violation of tesla's copyrights. So saying one of tesla's inventions would disturb another to disprove tesla's awesomeness just proves how amazing the man was.
"The FBI took it down for security".....How does that work??
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
@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...
This is amazing and I have no idea why this hasen't been widely implemented yet.
thanks for the reply. Than it's now the time to prepare ourselfs for it , for those who are interested in this matter.
Actually the tower was only supposed to send to a 20 mile area but it was taken down before it was ever finished. It's not known if the tower would have done what it was supposed to.
Inductive charging is already being tested in roads in Korea to power cars and busses.. Google, "online electric vehicle" plan at the Korea Advanced Institute of Science and Technology.
The general idea as I get it is that you'd have an appliance in your room beaming out the magnetic field. Your portable devices would have a coil to harness that magnetic field, converting some energy back into electricity.
Unless electricity is broadcast by a public utility, you'd still need a battery if you leave the house.
Think WIFI hot spots, but broadcasting electricity instead.
2:55 Eric Giler, God bless you! 😎💪
indeed it is, still theres a difference between a once used then discarded battery, and the rechargeable kind .
Is there a way to send power all throughout states or even the entire country? Perhaps using the carrier waves of cell towers.. or something?
@siggyuke what happened to tesla?
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.
TedTalks are always interesting.
That is so awesome, I hate having cords run everywhere. That is a great idea.
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
Awesome... thank you!
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?
Very nice, how much?
I wonder if you could set this up along major roads and run a public transport system with it.
listen to what he says at 4:30
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?
2:02 That's why trolleybuses are FAR BETTER than battery-powered buses.
For certain things, it is. Remote controls for your television comes to mind, I'm sure there are plenty of others.
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
Really awesome....
Very cool!
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.
I'm impressed, but what about cost?
@grandexandi
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...
really cool
Had no idea this tech was already so far.... read about some experiments but that seems likes it's coming for consumers real soon.
Yes, a friend of mine built a Tesla Coil in high school. We had all sorts of fun with it.
But as a means of power transmission it just isn't practical. The interference with other things, the short range, the huge losses, the danger, compared to a wire it isn't effective at all.
Amazing.
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.
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.
it has to be on exactly the same frequency, so probably you could sort of cipher it.
Now that's a really good idea...
Crazy shit... Always wondered about wireless power. NOW I KNOW!
I could see that magnet generator thing getting smaller as well, not that I'm a scientist but everything gets smaller over time...
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.
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?
What makes you say that?
wow, amazing
We have a pretty good idea! It isn't as if Tesla is the only person in history to create a big crackling electric arc.
Want to know what it would be like? Imagine living permanently in an extreme electric storm. Metal objects charge up with static electricity and shock you when you touch them, radio transmissions are impossible due to the constant roar of white noise static, all electronic devices in a wide radius are fried if they're not protected by a metal cage
Very practical!
I want one!
This might work great for small already wireless stuff such as phones. But big things such as television uses alot of energy. The energy loss is simply too big. But I don't doubt they'll work out something that fixes this. Its only in its early stages of development!
that's interesting. plus one to you!
I wouldn't use it if it's considerably less efficient than what it's trying to replace. I don't mind routing wires if it's 50% more efficient than wirelessly. Not only does it cost more for the rest of the parts (compared to wires), I can always just make a hole in the wall and run it down the cavity or cut a channel in the bricks to run wires down with something flush against the wall to cover.
I dunno, this is pretty revolutionary. Tesla tried to come up with a way to do it but it never got to where consumers could use it. If we can use this in our cars and homes, it'll be pretty exciting.
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.
@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.
@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.
wow the revolution in wireless electronics is before us
3:31
I wanna see the math involved here. I get the idea, i just wanna see how it works out on paper.
Tesla's technologies are already been used for decades but not all of them.The main reason why this have never got out in common use because nobody can charge you for the energy you spent coz there is no way to know how much you use it. When Tesla first introduced this technology to some rich guy, the guy said something like: "That's all good, but where will i put my voltmeter?" I've seen this stuff in person and it really works... my mobile battery started to charge when i got close this device
That`s how technological revolution starts. Go for it.
I agree. we're more than 100 years ahead of that now. We could of all been driving wirelessly powered electric cars by now :P
'It's alive!'
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."
(Wiki)
".. 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. :)
yeah I do think this wilectricity is a much cleaner and easier to charge for thing but I still think that the tower on long island may have surprised us. It's still argued what the finished product would have been like and the results thereof. Nothing of that size or intricacy has ever been built and we don't know his final designs for it we know a basic tesla coil but his final plans for the transformers etc were still in his head. We lost a chance at discovery because of marketing.
i cant stop stumbling
What would have stopped him from charging for it? Low production costs don't necessarily mean low rates, look at the cell phone industry.
Er, I'm not being stupid - I stand by my post.
Did you watch the video? That was one of the very first points he made.
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.
Any sufficiently advanced technology is indistinguishable from magic
Start listening at 3:34. I think he explains what you're confused about.
Wow, this is incredible.
Son, I am not disappoint.
I'm wondering if any of the people that keep bringing up Tesla's wireless electricity transmission experiments have any idea of what was actually involved. Do you?
Tesla was experimenting with charging up the air with a big electrical emitter, basically creating an electrical storm. Tapping that power would be a simple matter of putting up an antenna.
Sounds great until you get electrocuted by a flag pole, plus it wasn't as efficient as wires, plus the quality of the power would be abysmal.
The first prototype was 50% efficient. I'm sure their current model is more efficient.
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!
lol. *waves*
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.
I bet parents would love this, it's the ultimate baby-proofing technology.
resonant-谐振
"This ALL derives from Tesla's work,"
Really? What part?
I wasn't aware that Tesla had done any work at all on the field of power transmission via magnetic fields. (Not to be confused with electric fields...)
wohw! i want that in my electric car! :P
a 1cm gap? that's more of a cable car than an autonomous electric.
5:58
f-zero is real
Bullets, my only weakness. How did you know
probably not, electrical circuitry doesnt use magnetic resonance as far as i know :)
I agree with the health check but he did say it was the same magnetic strength as Earth itself...
My apologies, i may have misunderstood you then ; i thought you meant these wireless power devices could be harmful to humans in some way.
I do agree fully that interference with other devices certainly is a key issue for this kind of technology, but i think the solution is part of the innovation since the power transmission is very localized and supposedly doesn't attenuate further than the desired distance ; as for that, i haven't been able to find any more details myself yet :)