Researchers Not Giving Up On Dream Of Wireless Power
from the but-I'm-not-the-only-one dept
At some point or another, everybody's fantasized about it: wouldn't it be great if an electronic device could be powered wirelessly, fully eliminating the need for cables? It's an idea that's been talked about for a long time, back to the work of Nikola Tesla. Now a new team of researchers at MIT is going after the problem again. They believe that there's solid physics backing the idea up, and in fact their research builds on Tesla's original work. Still, this is firmly at the theoretical stages. Consider how long it's taking for fuel cell powered mobile devices to take off. We can safely say that this will take a much, much longer, if it ever comes about.
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look at transformers. they transfer power wirelessly. albiet over small distances.
sure, it's possible, however the ammount of energy needed to transmit the power would probably greatly overshaddow the usefullness of wireless power.
unless there is some type of "quantum" device that can broadcast shortrange low power, and have another device that can "use it" kinda like RF ID tags. right?
i doubt we'll get to the point where our ipods/cellpones/laptops will recharge/run off of this wireless power.
plus, won't it cause cancer?
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Re:
Not saying that it will work, and I am sure that there are hurdles aplenty, but none of what you discuss matters in the scheme that they have outlined.
But I do love smug recitation of high school physics, so I'll let you slide.
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Re:
I am interested in cellpone technology, though. Is that a way to cook a cornpone through cellular technology? Enlighten me, genius.
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this is too cool
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Oh boy!
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I just have this picture of someone with a funnel and a jug refueling a lap top and it make me smile.
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Sony Recalls Fuel Cell Laptops
Exploding laptop batteries are bad enough, imagine exploding fuel cells full of liquid hydrogen.
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wireless power
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hey fooyouck
so you won't trust ac1, but we should trust you? what do you have to bring to the table?
oh, and what's a cornpone?
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Lightening
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New battery technology
For devices which have intermittent use, such as laptops and cellphones, I don't see any need for wireless power. For things that run continuously, wireless power is not likely to be economical enough to replace the AC cord.
--
Violins and Musical Accessories
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Re: Ac1
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so, please somebody correct me if i'm wrong. i'm only a 3rd semester engineering student.
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Hey wtfmate
A lot more than AC1 and you.
There's a new tool called Google. You can enter the word 'cornpone' on their website and you can find out for yourself. The address is http://www.google.com Try it out, it will open a whole world of new information to you!
And it's Foo Yuck, not fooyouck you mongoloid fartknocker.
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fooyuck
google, i'm a lazy bastard. i want to give trolls like you the chance to flex your muscles, just to see how big and bad you think you are.
oh, and have you heard of wikipedia? why just not call it cornbread, like everyone else who isn't a caucasoid redneck dumbass.
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Re: Another AC
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for all the skeptics
http://web.mit.edu/physics/facultyandstaff/faculty/marin_soljacic.html
how about you e-mail him and ask him himself... (also, check out the guys home page link and his publications/patents link from there... this guy is no joke...)
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EM "friction"
Of course, the question of what those waves do exactly to a human body still would be a question. Just like effects of any other EM fields or even solar flares.
I am sure that outside this little discussion no one even bothered to think about it. Go us.
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Its all about the money.
But I think the biggest hindrance to the technology is that it is a lot harder to meter so how will power companies charge you? Without an incentive to make money power companies are not going to adopt or even research this.
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wtfmate
A Wikipedia is overrun by misinformation and fags, but maybe that's why you hang out there, since you're apparently well acquainted with both.
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yeah
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Re: EM "friction"
---Typically, systems that use electromagnetic radiation, such as radio antennas, are not suitable for the efficient transfer of energy because they scatter energy in all directions, wasting large amounts of it into free space.
To overcome this problem, the team investigated a special class of "non-radiative" objects with so-called "long-lived resonances".
When energy is applied to these objects it remains bound to them, rather than escaping to space. "Tails" of energy, which can be many metres long, flicker over the surface.
"If you bring another resonant object with the same frequency close enough to these tails then it turns out that the energy can tunnel from one object to another," said Professor Soljacic.
Hence, a simple copper antenna designed to have long-lived resonance could transfer energy to a laptop with its own antenna resonating at the same frequency. The computer would be truly wireless.
Any energy not diverted into a gadget or appliance is simply reabsorbed. ---
again, if you want details then e-mail the guy... i am sure that outside this little discussion nobody is "a Principal Research Scientist in the Research Laboratory of Electronics at MIT" and has conducted experiments on the subject in hand yet within this little discussion we all seem to be experts as to why this won't work and are sure it will cause cancer even though we don't understand what it is or the principles as to why it works... go us.
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Re: Re: EM "friction"
And that still does not address the question of the effect on the body.
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This is feasible
On the same note, Another model i can see working a little bit better (if we can improve the piezo technology) is incase a piezo device in our mobile products (again the improvement would require it to generate much more voltage than they already do) design that device so resonate at an AUDIO frequency of say 24gHz (Higher hertz means less atmospheric disruption) and use audio resonation to power our piezo generator.
I spent four years in the electronics field so I know that in theory that could work, IF we are willing to use an older tech instead of creating new.
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wtfmate
please respond.
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Some light on the subject
Tesla wasn't talking about batteries, rechargeable or otherwise. It isn't about generators, alternators, wind power or solar power.
I'll admit, I had to read it a bunch of times because it's almost as hard to wrap your head around as Mike's theory of scarcity/abundance.
Enjoy.
I hope this is what MIT is going after...
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