This router can power your devices wirelessly from 15 feet away

Discussion in 'hardware' started by ronjor, Jan 11, 2015.

  1. ronjor

    ronjor Global Moderator

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  2. imdb

    imdb Registered Member

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    thanks. good read. comments are just as intriguing.
     
  3. Gullible Jones

    Gullible Jones Registered Member

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    Umm. I'm frankly very skeptical of claims of "EMF allergies" etc. in general, but this seems like a whole different matter to me. That is an awful lot more wattage involved, and the dose just might make the poison.
     
  4. imdb

    imdb Registered Member

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    indeed.
     
  5. Mrkvonic

    Mrkvonic Linux Systems Expert

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    Interesting ... as for the comments, the usual plethora of people who know nothing about radiation.
    Mrk
     
  6. imdb

    imdb Registered Member

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    they are? so it's got no impact on human health, is that right?
     
  7. Mrkvonic

    Mrkvonic Linux Systems Expert

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    No, there's impact. But it's only been unequivocally proven for very high doses of ionizing radiation only.
    Moreover, there are theories about hormesis, etc. But it's about high energies. Nothing to do with radio.

    You are aware that you're constantly exposed to radiation everywhere, from a thousand different sources?
    Cosmic background radiation, radioactive traces in basements, building materials, coal plants, trees, etc.

    Radio is nothing to fret about unless you sit on a 10MW antenna.

    Mrk
     
  8. imdb

    imdb Registered Member

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    yeah, i'm aware of the facts you mention in your post but i'm also aware of the fact that it usually is too late when some researchers publish an article telling how harmful a certain technology can be for human health and what we should do to avoid its effects on us.
    i just hope you're right on this one.
     
  9. Mrkvonic

    Mrkvonic Linux Systems Expert

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    I worked as a radiation worker for 5 years (physicist, medical industry). Some facts that you might find stunning:

    The background radiation in the Chernobyl area has gone up x2 since the accident to roughly 4mSv. This sounds like a lot, but then, in France, they always had that, due to a different composition of materials in the mantle underneath France. The total death tally from direct exposure during the accident is in tens of deaths, with one superman surviving 6 Sv (5 is consindered 100% lethal). The expected death for the population of 8 million people in the area over the next 100 years is projected at about 5,000 deaths. That's roughly 1 in 1,000 extra deaths (1%) over four generations, and less than the cummulative effect of alcohol, road accidents, and heart diseases/cancer.

    65% of all heat on our planet comes from radiation isotopes in the mantle and crust.

    An international flight (e.g. USA to Europe) is equivalent to about 5% annual background dose.

    A CT scan equals 5-15 years of background radiation dose.

    Radiation is nothing to worry, unless you get exposed to huge quantities. If anything avoid chest x-ray and CT scans. Dental work is negligible. Overall, it is very difficult to distiguish its effect from other environmental causes, like smoking, food, additives in food, pollution, genetic traits, lifestyle, ingestion of medicines, etc.

    Overall, a single CT scan is probably worth a lifetime exposure to cellphones and wireless devices, even though we're talking different spectrum range, but that's just a rough and very un-mathematical estimate.

    Cheers,
    Mrk
     
    Last edited: Jan 16, 2015
  10. imdb

    imdb Registered Member

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    thanks for the detailed info.
     
  11. Hungry Man

    Hungry Man Registered Member

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    Yes, things like this can give us an intuitive "yikes" feeling. But really, at a basic level, the way wireless charges work could never effect a human being. It's like trying to stick a magnet to a person - we just don't have a reaction.
     
  12. Gullible Jones

    Gullible Jones Registered Member

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    @Hungry Man, I'm not talking ionization, I'm talking about heat. Bluetooth is 2.485 GHz. A microwave oven would typically be around 2.45 GHz. The whole microwave band is very readily absorbed by water.

    For a cell phone or wireless router putting out a couple of watts, this is not a big deal. If it's a few dozen watts, though, in that range, and near enough to power stuff, then I kind of wonder if it could raise someone's core temperature in a uniform, long-term way that might not necessarily be healthy.

    Then again: I don't really know the wattage, or the wavelength. And I'm not a medical professional. And people can take scalding hot showers without dying, so...
     
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