Wireless Electricity is Here

Yesterday Intel showed off a solution that can deliver electrical power wirelessly and safely. They are using magnetic fields to transfer electricity which is supposed to be safer for humans than electric fields, as is reported in this article.

“It turns out the human body is not affected by magnetic fields; it is affected by electric fields. So what we are doing is transmitting energy using the magnetic field not the electric field.”

Although this is very cool, and its applications are endless. Personally, i would not use such a thing unless it went heavy rigorous testing for saftey and was analyzed for its effects on the human body (both in the short term and in the long term). However, it is a cool thing nonetheless. Soon, cords will be looked at as primitive tools of the past 🙂

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11 Comments.

  1. Ok, this is not enough information, can you add a link or something so that we can get more details? Electricity through magnetic fields is really nothing new. In fact, it’s the bases of all the generators.
    The problem with induction (and magnetic fields in general) is that they’re extremely short range. As magnetic field strength is a function of distance (as per Ampere’s law, and Maxwell’s equations) so the value of the “tesla meter-squared = Weber” is usually small as the tesla-meter distance grows. Add to those permittivity and permeability constants and it goes even smaller.

    Anyway, I’m a big believer in transmitted power/electricity, and believe it WILL happen in the future, just as Tesla did it back in Colorado springs where he was able to transmit electricity a MILE away. That was one century ago!

    As for having the option to use it or not, I don’t think anyone has a choice! It’s just like Radio waves, Cell phone signal, WI-FI …etc. We’re SHOWERING in it 24/7/365 whether we like it or not! So it’s effects on humans is going to really be beside the point!

    Oh and don’t forget, we are ALREADY living in a huge magnetic field called “Planet Earth” 

  2. Qwaider Qwaider Qwaider ! reading ur comment brought back so many memories of long forgotten physics ! college is ruining me dude ! hehe

    This is cool but yea , would you please post more information =D

  3. I had a “read more” link to the original article at the end of the quoted block, but it seems it had blended in so i moved it out. It is fixed now.

    Qwaider: Yes having a metal object repeatedly penetrating a magnetic field is the basis for power generators, but i hope this is not the same way they are going to “transmit” power (because this is more like generating power rather than transmitting it). Because, if so, it will be pretty dangerous because we won’t have control over what metal objects will be electrified in this range.

    Yeah i am a big advocate for wireless transmission as well. Personally, i feel that copper wires (just like paper) are primitive tools of the past 🙂 However, as copper wires had to become shielded for safety, i do wish this technology to be rigorously tested before deployment 🙂

    Finally, yes we are naturally in a big planetary magnetic field, but the field required for electrical transmission must be stronger (or more dense). Just like the fact that there are natural (weak) radio and electromagnetic waves, and even natural nuclear radiation (that is also weak) and none of that poses a health risk.

    So yeah, i agree with you .. this thing will be awesome once it is finalized, and whether we like it or not, this will become the norm (it is much cheaper and more convenient than cables).

    LostWithin: Ahh .. don’t remind me .. now i am in grad school and i don’t remember much of my high school chemistry or biology .. it seems as your progress in your education you know more about some specific stuff, but less about general stuff 🙂 .. this comic describes it perfectly: http://www.phdcomics.com/comics/archive.php?comicid=1056

  4. After reading the article, I don’t think we have any breakthrough here. This is a bunch of hot air
    There’s nothing new here, this exactly the experiment of Maxwell’s ring, only done in the 21st century with an actual application.
    What they’re doing here is sending an Electromagnetic signal (just like you have in RF) and receiving it on the other side. It’s known that electromagnetic signals in low frequencies are harmless to humans. On the other side, you only need to “tune” in to the right frequency and .. you have electricity!
    Maybe the refinement of the process is the big deal here. But the same problems remain. It’s inefficient and uses WAY more power than a $0.02 wire. It will prove its value if and when it can reach the same “value” as a power cord + transformer. Which is in the $0.50 these days!

    In fact, with a little circuit wizardry, you can achieve this today. Just tune in to a high amplitude signal (or signals), regulate the signal that you get. And free power! 🙂
    By the way, your comment field is busted in IE8

  5. Qwaider: I honestly can not claim that i know or remember anything about Maxwell’s ring experiment, and i don’t know exactly what is their “breakthrough” here. But i do hope that we are getting closer to wireless power 🙂 .

    Thanks for letting me know about the IE8 issue, i’ll try to fix it when it rolls out (because maybe they’ll fix it on the IE side before then 🙂 )

  6. Dude…you honestly made my day!
    my graduation project partner, wants to do this idea!
    and i was like dude ” you must be shitting me..this stuff aint easy”! lol
    he thinks its easy o el 7elo bel mawdoo3 he didnt search anything about it lol

  7. finally someone believes in that idea, everyone that i told about wireless electricity would just laugh at me, anyway read this topic for more info: http://en.wikipedia.org/wiki/Wireless_energy_transfer and yes it’s been ages since they have discovered the idea, i just can’t wait another 5 years to stand in front of everyone of my friends and shouting out “I TOLD YOU SO” instead of laughing at me because someone could get shocked while taking a bath :S, and yep this idea popped into my head 4 years ago and I still believe in it, hope that I can achieve it someday, but my project partners wont let us try it :(, just imagine a world wire free :D, there will be no need for the mac pop charger and PC’s will get an extra point 😛 to know what I am talking about : http://www.youtube.com/watch?v=ZzEtRrZVFIQ

  8. Ramadan Kareem!

    Fawazeer @ mab3oos

  9. Im not technologically savvy to be opening my mouth on this subject lol but just like anything else, if its new.. its dangerous until proven otherwise. I would def. stay away until further notices of safety being tried out and seeing the side effects whether good or bad.

  10. mshan Allah do something about your captcha! eft!

  11. Maher, Shaher: Thanks. Yeah this definitely seems to be the goal for the future. After all, it is all about integrating electronics into our daily lives, clothes, and cars ..etc. Being restricted by wires is no longer acceptable, so we might very well see this coming soon.

    Garfan: Ramadan Kareem to you as well. Thanks for the update, i have checked it out and it looks cool.

    Batoul #1: hehe … well i am not that well versed with this subject either. But it seems like a good strategy to give things a little while for testing and working out the kinks before adopting.

    Batoul #2: LOOOL… haha .. lesh sho 3imlatlik hal captcha il miskeeneh 😀

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