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MIT Wirelessly Powers a Lightbulb

kcurtis writes "According to the Boston Globe, MIT Researchers have powered a light bulb remotely. The successful experiment lit a 60-watt light bulb from a power source two meters away, with no physical connection between the power source and the light bulb. Details about WiTricity, or wireless electricity, are scheduled to be reported today in Science Express, the advance online publication of the journal Science, the Massachusetts Institute of Technology said. 'The team from MIT is not the first group to suggest wireless energy transfer. Nineteenth-century physicist and engineer Nikola Tesla experimented with long-range wireless energy transfer, but his most ambitious attempt - the 29m high aerial known as Wardenclyffe Tower, in New York - failed when he ran out of money. Others have worked on highly directional mechanisms of energy transfer such as lasers. However, unlike the MIT work, these require an uninterrupted line of sight, and are therefore not good for powering objects around the home.'"

4 of 394 comments (clear)

  1. Re:so if cellphone radiation might cause cancer... by binarybum · · Score: 5, Insightful

    nah, there are enough people imagining this sort of garbage. Let's try studying it instead. MRI uses huge magnetic fields that researchers are exposed to on a daily basis and there is no solid data that it causes biologic harm. All waves that are invisible are not Roentgen's, let's be prudent rather than luddite.

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  2. Re:Wow. 100 years and they finally caught up with. by Jeremy_Bee · · Score: 5, Insightful

    First off, Nicola Tesla was not insane. Secondly, he *did* do this, many times in fact.

    Personally, I am a bit miffed at the MIT folks for not giving credit where credit is due. This is the second article I have seen in the last month or two on this topic and they hardly even mention the fact that this is a key Tesla invention that was in fact accomplished by him and repeatably demonstrated. To read the articles one would think that the folks at MIT just sat down last week and invented this all by themselves when it is simply not true.

    It *is* the case that Tesla is a "fan favorite" of the same type of folks that like to believe in free energy machines and it *is* the case that his *commercial* attempt at providing wireless power was never finished, but the technique and the methodology behind it was sound and I think even patented by Tesla.

    To ignore his achievements, simply because many years after his death the man has gained some tertiary association with the lunatic fringe is a bit outrageous to my mind. The particular article referenced here even goes out of it's way to say that Tesla tried wireless power but "failed" (even though they mention off-handedly that it was only through lack of funds, not through any technical problems).

    Tesla invented this technique, plain and simple. And those articles that fail to mention it are doing history a great dis-service.

  3. No, it doesn't. by santiago · · Score: 5, Insightful

    All the pieces are there in robotics except for the one that this technology addresses: lightweight, high-density power. Oh, and let's not forget cheap.


    As someone with a robotics degree from Carnegie Mellon, I feel to compelled to point out that you're ignoring just how abjectly stupid and incompetent robots still are. We do not have anywhere near the level of AI needed for robot farmers to deal with the messy, filthy, ever-changing world of a farm. Automatic tractors that can plow fields or spray crops, yes. Weeding and picking fruit, no. Power isn't the problem; intelligence is.
  4. Re:Only need a two foor diameter antenna... hmm... by Cal+Paterson · · Score: 5, Insightful

    Have we considered, possibly, perhaps, maybe just, that with greater research this technology could improve over time?

    Nah, that's silly!