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Future Desks to Charge Gadgets Wirelessly

Posted by Zonk on Sat Jan 20, 2007 02:48 PM
from the much-better-than-hope-and-batteries dept.
IronMan writes "Future desks may allow us to charge our phones, iPods, PDAs and other gadgets wirelessly. Office equipment maker Herman Miller is one of the first companies to license the eCoupled inductive coupling technology from Fulton Innovation, Engadget reports. The desk will allows wireless transfer of energy through a magnetic field. Motorola is working together with eCoupled, but still is not sure when the first consumer devices with this technology will appear on the market. From the article: 'Of course, cordless charging isn't an entirely new concept, with HP recently showing off some of its own ideas for juiced-up furniture, and Splashpower talking up its charge-on-contact system for a few years now. We guess we'll just have to wait and see if this new power-happy desk becomes the same status symbol for the Web 2.0 crowd that Herman Miller's Aeron chair was back in Web 1.0 days -- assuming we haven't moved on to Web 3.0 by the time the desk actually comes out, that is.'"
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  • Is anyone worried about what the effects might be on the person sitting at the desk? Long term exposure to magnetic radiation may cause cancer...
    • I don't buy that. Strong Magnetic fields can be dangerous, (see my credit card example below) but I've never heard of harmful medical effects due to magnetic fields. (it's not really radiation) However, Life is known to the state of California to cause cancer and birth defects, so, don't buy this desk if you live in California.
        • Re:Health concerns (Score:5, Insightful)

          by Dun Malg (230075) on Saturday January 20 2007, @03:54PM (#17696760) Homepage

          Your opinion, as stated, gives the impression of there being no evidence whatsoever, due to the fact that "you" have not "heard" of any harmfull medical effects due to magnetic fields, and total ignorance (and scepticism) of any potential mechanism at all, which is far from a balanced reflection of the actual evidence at this time in the scientific community.
          OK, how about this: Over the last 100+ years of exposure to magnetic fields, the closest anyone has come to finding a statistical link between low-grade magnetic fields and any health problems is the now-famous study showing a correlation between leukemia and living under power lines--- but the notion of a causal link between the two is spurious at best. Studies of MRI technician, aluminum foundry workers, and electrical linesmen have shown no health effects that can be linked to their exposure to magnetic fields, and they are exposed to fields many times greater than you'd ever see from an inductively coupling charging system. Studies so far [nih.gov] have shown that there is little negative reaction by organic systems to magnetic fields.

          The problem here is that you are asking for proof of a negative. You see, in science, when someone asserts the condition X may have effect Y out of the blue like that, the only proper response is "I have seen no evidence of this, so unless you can show evidence of a link, I must assume it to be false". Claiming "just because it's not proven doesn't mean it's not true" is foolish and childlike. Claims must be supported by proof. The burden is not on the rest of the world to disprove. Science is built on facts, not speculations. Logical thinking--- it works!

          It still amazes me how many people there are out there that apparently need this explained to them.
          • Re: (Score:2, Interesting)

            I think the health concerns have more to do with a lack of understanding magnetism than a lack of understanding proofs of a negative. People have a natural fear of the unknown. We don't yet understand magnetism and if/how our own bodies use it. Think about in the past, people were afraid if they sailed too far they would fall off the edge of the earth. They had no proof of this, but they also had no understanding of the way the world worked. Although I admit magnetism is a bit different, the natural fe
          • by beaverfever (584714) on Saturday January 20 2007, @05:12PM (#17697246) Homepage
            Yeah, but can I expect a positive or negative effect from the tin foil in my hat?
          • Re: (Score:2, Insightful)

            In our risk adverse society, it is not unreasonable to expect for people to want something new to be proven to be safe vs. "well, we haven't seen any negative side effects yet, so it must be safe". "Proof" only coming with time and widespread use which introduces the chicken and the egg problem.

            As a counter point to your argument, look at lead and uranium based paints. Some one correct me if I'm wrong, but I don't think that anyone thought there was anything wrong with lead based paint until its use
          • Re: (Score:3, Insightful)

            Actually, we don't even have to show a zero-negative effect.

            At this point, we can fairly safely put an upper bound on any negative effects of magnetic fields. If they were, for instance, instantly fatal, we'd know. If they increased your bone cancer chances by 1000 times, we'd know. The maximum negative effect must be pretty small, or we wouldn't be sitting here arguing about it, we'd be pointing to the 99.9%-confidence studies.

            Meanwhile, we have very real benefits from the devices generating these fields.
            • My opinion is based upon other peoples (scientists) as yet unfinished scientific studies. Secondly "100+" years means nothing,

              Show me the proof. This is really very simple. In 100+ years of strong magnetic fields, no one has yet shown proof of serious ill effects from magnetism. You believe in "unfinished scientific studies", which you haven't shown to us or even named. Claims demand proof.

              things that are thought as safe often get proven to be dangerous, remember Marie Curie's glowing potato shed?

              The cancer causing effects of radiation were noticed as early as 1902, a mere 4 years after the Curies began their experiments. What was not known was how much radiation was harmful, and how radioactive various things were.

              Secondly, You quote three very valid types of employment who do work in close vacinity to magnetic fields. However, exposure assesments based on job title are a very crude method of assessing exposure due to the possibility of exposure misclassification. Also I used to string large electricity pylons I am still alive, I hope we both agree this prooves nothing.

              WTF are you t

                • Claims demand proof.

                  Yes. ALL claims demand proof, even your claim that a relationship is false DEMANDS proof, to any reasonable person. The onus or burden is on anyone who makes a claim to prove that claim to their interlocutor, positive OR negative. Your statements about being asked to prove the negative are the same irrational, book-banging routine, which I've seen thousands of times -- it's the rallying cry for the irrational members of the scientific community. If you need positive proof to form your own opinion about the veracity of a claim, fine. However, if you want to overstep that boundary and in addition, not only request positive proof, but claim now that it's false -- well, then, now YOU need to do some explaining.

                  I don't need to explain anything you nutcase. I didn't originate any assertions. Claims demand proof, and that starts with the first person to make an assertion! Let me explain how this works so that you can understand:

                  1. Person A opens mouth and makes unsupported Claim X
                  2. Person B hears unsupported Claim X and demands proof

                  Person B is not required to prove anything because Person B did not make any claims! This is simple logic! Person A cannot turn around simply say "prove it's not true", because

    • You're exposed to radiation everywhere, every day.

      Your cellphone, your power mains, radio signal, TV broadcasts, 2-way radios, WiFi, you name it. All of them surround you in radiation.

      I'm not so concerned about adding one more source.
    • by chris_eineke (634570) on Saturday January 20 2007, @03:34PM (#17696620) Homepage Journal
      But I thought magnetic waves were supposed to heal injuries [indiangyan.com], not cause them! You are destroying my worldview -- you must be one of those scienti... I mean terrorists that are eradicating the American way of life!
      Shoo! SHOO!
    • Ever had an MRI? Ever noticed that the radiologist ain't hiding behind anything like the X-Ray guy does?

      "Magnetic radiation" isn't strong enough to make or break chemical bonds. Now certain kinds of electro-magnetic radiation *are* harmful, like gamma rays, X-rays, UV, and even visible light. But magnetic fields by themselves aren't going to do much more than erase your credit cards and put your protons in excited spin states.

      Now if they were using Tesla coils to recharge stuff wirelessly, then I'd be wo
      • Yes, the "magnetic radiation" is not strong enough to break chemical bonds but it may still affect the nervous system or other systems of the body. It is try that there is a _correlation_ between living under power lines and incidents of leukemia (maybe people who live under power lines are poor and eat crappy foods and therefore get leukemia?).

        And is also true that individuals who are exposed to magnetic radiation in their workplace have not been found to be worse off than everyone else. Therefore on

        • It is try that there is a _correlation_ between living under power lines and incidents of leukemia (maybe people who live under power lines are poor and eat crappy foods and therefore get leukemia?)

          It is still disputed (last I heard, Childhood Cancer Research Group says yes but Childhood Cancer Study says no). But even in the case of the CCRG, neither of the hypotheses they advanced to explain their findings had anything to do with magnetic fields.

          And is also true that individuals who are exposed to magneti
        • Re: (Score:3, Informative)

          Yes, the "magnetic radiation" is not strong enough to break chemical bonds but it may still affect the nervous system or other systems of the body.

          I can't possibly see how. Most systems in the body depend on oxidation/reduction reactions, the cleavage/formation of phosphate bonds, or Na/K ion channels. Most elements present in vivo don't even have spin-active nuclei. Even if they get in excited spin states, that doesn't affect their reactivity in any meaningful way.

          Therefore one cannot claim that low fre
          • I can't possibly see how. Most systems in the body depend on oxidation/reduction reactions,

            The body, especially the brain and the nervous system is also a conductor, therefore and antenna. The brain's electrical signal are low enough that it won't take much to disrupt them. I imagine if someone is living close to a radio station, where people with metal fillings can hear "voices" in their head, there might be some interference with the central nervous system. I am not talking about burnt brain matter but

          • Well, peripheral nerve stimulation is a very real effect and concern during whole-body MRI. You can induce currents within single nerves without creating chemical reactions. You still get the gradient and that's all that's needed. (Of course, that gradient will activate chemical reactions in the actual synapse.)
    • But living on Earth has a higher rate of cancer.

      News flash to you, if you live in a home with electrical wiring and electricity then you are living inside a very large magnetic field, your car has lots of magentic fields.

      And god help you if you carry a cellphone, use a walkie talkie, have a TV set, etc...

      Pick your death, magnetic radiation and die of cancer when you are 85 or live like they did on the frontier and die without cancer but at age 45.

      Life on this planet is deadly, the dangers of a magnetic fie
    • I'd be more concerned about eh power wastage / efficiency concerns. Electricity ain't getting any cheaper (quite the reverse), and I can't say its *that* onerous a task to plug in a device only when it needs charging. Is this an always-on solution? because if so, that seems horribly wasteful to me.
      • Actually in theory, the desk should not draw much current until something is charging, even if it is technically "always on". Transformers work on this same basic principle: electrical coils are not in direct contact, but inductively coupled. If there is no load on the downstream end, the power supply will also experience no load (well...ideally, in actuality it's a smaller load) and electriciy isn't particularly wasted.

        All that said, though, I'm not convinced this desk is going to work like a perfectly

        • Conceptually, inductive charging technology just splits the transformer into two halves: one in the "charger" and one in the device itself.

          Yeah, and the result is a lot less efficient.

    • Is anyone worried about what the effects might be on the person sitting at the desk? Long term exposure to magnetic radiation may cause cancer...
      I have a heart pacemaker and have been told that magnetic fields are something to be avoided. I wonder if they even looked into the possibility of there being a problem.

      I walk into your office, reach over your desk to shake your hand (not knowing your charger is there) and collapse...

      • Think "Inverse Square Law". A very weak EM field could charge something placed directly on top of it, while the effect would be negligible outside a very short distance.
    • I would be more concerned with putting a laptop with a magnet based storage medium on a desk with a powerful magnetic field.
      • Re: (Score:2, Insightful)

        Once the word RADIATION is heard, most people cringe. They lump all EM radiation into the same category as UV, X and Gamma rays, or even confuse it with particle radiation. Anyway, I seriously doubt that this desk will emit anything higher than a few millivolts at a couple hundred Hertz.
  • by Asm-Coder (929671) on Saturday January 20 2007, @02:54PM (#17696402)
    Or, at least, no more shopping at stores in town after laying your credit card down on your desk while shopping online.
  • "Not exactly new" (Score:5, Informative)

    by SilentBob0727 (974090) on Saturday January 20 2007, @02:58PM (#17696416) Homepage
    The wireless transfer of energy through magnetic fields is called electromagnetic induction, and it's been a well-known phenomenon since 1831. It's also currently used the world over: see http://en.wikipedia.org/wiki/Transformer [wikipedia.org]
    • I believe the intention of this article was to introduce a new and particularly well grounded way of using said electromagnaetic induction. I dont believe the makers are stating anywhere that they have found a new way to transfer energy, they simply have made a push to have it integrated into our office lives.
  • by Robot Randy (982296) on Saturday January 20 2007, @03:01PM (#17696438)
    And the cassette tape, floppy disk, microcassette, LTO-3 Backup, etc...

    not to mention pacemakers, insulin pumps...
    • And I don't really see a benefit in having to place your device on a certain spot on the desk to recharge it over having to place it in some charging device.

      The charging device is even more practical, since it's more portable.
    • Mmmm. LTO-3. Where you can store your life on a 400gig tape, to have it nullified when the leader breaks.
  • Old technology (Score:3, Interesting)

    by NineNine (235196) on Saturday January 20 2007, @03:03PM (#17696460) Homepage
    I've been charging my dog's "invisible fence" collar this way for years. Actually, with that technology, it doesn't even have to touch. It just has to get close to the charger (within an inch or two). Works great. My dog's zapper collar is 100% sealed shut, making it 100% waterproof.
  • I can't seriously be the only one tired of hearing about Web x.0.
    • "Web 2.0" is the "information superhighway" of the middle of this decade. That is, it is the phrase that makes it clear that the speaker is a moron. And what the fuck the web has to do with a charging desk, I dunno.
  • Sheesh! (Score:3, Funny)

    by camperdave (969942) on Saturday January 20 2007, @03:22PM (#17696560) Journal
    Now they're expecting me to carry a desk around whenever I need to charge things? No thanks. I'll just carry a wall-wart and plug it into any of the billion+ outlets scattered throughout North America.
  • Imagine... (Score:3, Funny)

    by ivan256 (17499) on Saturday January 20 2007, @03:25PM (#17696576)
    ...if every electrical outlet had a different type of prongs depending on the brand of plug you bought.

    Hell, you don't even have to imagine. We already live with the incompatibility of low voltage power connectors... Only now instead of replacing an adapter when we get a device from a different manufacturer, we can buy all new office furniture! Joy!

    This technology is useless until the patents expire and building and electric codes require a specific version of the technology.
    • I don't think the future is that bleak, we just need the wireless equivalent of USB to pop up (which won't be wireless USB as we know it now, given that it only does data, not power).

      All it takes is a cheaply available and relatively generalized wireless power/data standard, with wide enough support that it becomes in a device maker's interests to leverage everyone's preexisting chargers for their new products. In fact, it seems likely that given the lack of physical plug designs to wrangle over for smalle
    • When devices stop using electricity, yes, you'll have to buy a new desk.
    • Hell, you don't even have to imagine. We already live with the incompatibility of low voltage power connectors... Only now instead of replacing an adapter when we get a device from a different manufacturer, we can buy all new office furniture! Joy!

      And there's the reason why this inductive-charging scheme will not be adopted quickly by gadget companies: accessories are a cash cow.

      Indeed, it is possible to sell a gadget at a loss, and earn all your profits on things like wall adapters, car adapters, USB ada

  • Wireless mouse (Score:4, Interesting)

    by Bacon Bits (926911) on Saturday January 20 2007, @04:22PM (#17696980)
    The first thing to come into my mind is a wireless mouse that gets power through the mouse pad. Wouldn't even need batteries, probably. Just capacitors.
    • Re: (Score:3, Interesting)

      Well, it's not EXACTLY the same, but if you get a Wacom graphics tablet, they include a mouse that only works on the tablet... it doesn't have a power supply at all, though, batteries or otherwise, and neither does the pen...
    • Re: (Score:3, Informative)

      Wireless mouse [a4tech.us]. Seems kind of stupid though. It's like a wired mouse without the wire connected to the mouse itself.
  • I'm curious about the efficiency of charging batteries with this technology. Batteries are already have an inherent level of inefficiency, so it seems to me that potentially adding another layer of energy loss to battery-powered gadgets is unfortunate and disappointing at best, environmentally irresponsible and a choice to contribute to the spoiling of Earth at worst.
    • The energy inefficiency of this idea is astounding. A few thousand desks like this would need their own power station.

      I've got a much better idea: How about we standardize the power connectors on 'phones so that you can easily have a charger at work *and* at home, borrow a friend's charger, use the charger in your friend's car, etc.

      If you really must have contactless charging, how about a cradle which is roughly the same size/shape as a 'phone - so the induction coils actually line up properly and you only
    • That would actually be a pretty cool device- a coffee mug with a heating element


      Still, I think this is the solution to the wrong problem. I don't find a single cord and an adapter that much of a hassle. The problem I have is that every single device needs a different charger- laptop, cell phone, iPod, digital camera, etc. I think the real need is for some standardization so you could have just one adapter charging multiple devices.