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Frank Herbert's Moisture Traps May Be a Reality

Omomyid writes "In the seminal science fiction book 'Dune,' Frank Herbert envisioned the Fremen collecting water from the air via moisture traps and dew collectors. Science Daily reprints a press release from the Fraunhofer Institute in Stuttgart, where scientists working with colleagues from Logos Innovationen have developed a closed-loop and self-sustaining method, no external power required, for teasing the humidity out of desert air and into potable water."

12 of 226 comments (clear)

  1. Still suits next? by icebike · · Score: 5, Insightful

    If you extract moisture from already very dry are do you not create a dead zone down wind?

    There is life everywhere in the desert, most of which is tuned to live on very little water, but all of which need water from some source occasionally.

    Pushing humans into these areas where the only source of water is minimally moist seems rather pointless and ill advised.

    Would it work on mars?

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    1. Re:Still suits next? by Bester · · Score: 5, Insightful

      From a quick googling it seems that the reason that water tanks are illegal in the above states is not to do with affecting the local environment but more to do with the fact that it 'deprives' downstream users of their share.

      I get the feel from the articles that downstream providers are farmers and not parched wildlife.

      Charles

    2. Re:Still suits next? by larry+bagina · · Score: 5, Informative

      It's illegal because their water rights are based on a first come (excluding Indians) basis. Conventional wisdom (since disproven) was that collecting rainwater prevented it from going to it's rightful owners. More recent scientific studies have demonstrated that only 3% of rainwater ends up in the waterways.

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      These aren't the 'roids you're looking for.

    3. Re:Still suits next? by jandoedel · · Score: 5, Funny

      (forgot the line breaks)

      Only a gallon of water over an acre of land? I doubt it.

      I'm not really used to the Imperial System, but I'll try my best to do the calculation in it.
      1 acre = "how much a man with an ox can manage in 1 day"
      1 gallon = "1 eights of a bushel"
      1 bushel = "the volume of a pile of wheat which weighs 64 tower pounds"
      1 tower pound = "5400 troy grains"
      1 troy grain = "64.79891 milligrams"
      1 quart = "a quarter of a gallon"
      density of wheat = 950 000 karat / hogshead
      average humidity in Colorado = 40%

      assume a humidity of 40%, and you get about 40 gallons of water in the furlong of air over an acre of land. A quart doesn't really seem to make that much of a difference.

  2. Will these scientists ever learn? by levicivita · · Score: 5, Funny
    How do they expect to keep such large structures safe from worms? I guess this is a typical melange bull market phenomenon. As soon as the price of spice jumps past $70 these people start building unsustainable castles in the sand. I for one will continue diligently keeping urinating into my stillsuit with the water recycling conservatively set on 'maximum.'

    Walk without rythm, fellow travelers.

  3. I have no need for this article by scourfish · · Score: 5, Funny

    What I really need is a droid that understands the binary language of moisture vaporators.

  4. Re:And this is news how? by rackserverdeals · · Score: 5, Insightful

    I'm glad that people are focusing on answers for people in underprivileged parts of the world, but it's not some sort of magical discovery.

    You must have read the wrong article. They never claimed it was magic.

    P.S. Claiming you haven't read the article doesn't absolve you if you make a mistake.

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  5. Re:Learned this in summer camp by gstoddart · · Score: 5, Insightful

    When I was 12 they taught us how to make a moisture trap with a can and some cellophane. Granted we weren't in a desert, but I am surprised if this "new" development surprises anybody.

    Clearly, this is on a larger scale and far more impressive than what you did when you were 12.

    Seriously, just because you did something which is conceptually similar, doesn't mean that this isn't an advance. Conceptually, flight hasn't changed since the Wright Brothers. Practically, it obviously has.

    Cheers

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  6. Re:When the figurative white man "discovers" it by Anonymous Coward · · Score: 5, Funny

    Thanks for clearing that up. I thought you meant he would suddenly notice Solid Snake sneaking around his desalinization plant.

  7. Re:In the seminal science fiction book 'Dune by Anonymous Coward · · Score: 5, Informative

    Given the state of scientific knowledge in 1965 (when dune was published) it's a lot harder SF than some people seem to realise.
    Herbert did some serious background research for Dune IMO.

    Sure bits of it seem *now* to us as absurd as Doc Smith's diesel-engined spacecraft, but in 1965, 12 years after the discover of DNA, 17 years after the initial formalisation of classical information theory, when computers were still mostly small-room-sized, the idea the genetic code could pass down memories wasn't all that outlandish a hypothesis - in fact it seemed pretty reasonable. If you were writing now you'd probably come up with people being genetically engineered to add informational appendicies to germ line DNA rather than the ability being built-in by evolution, but there's nothing impossible about it. And if you pay attention to the books, you'll note that being able to "see the future" doesn't work in a naive way either, it's clearly been modelled on "quantum collapse" and "many fingered time" that any passing 1960s physicists would have talked the ear off Herbert about.

    And with very powerful figures *right now* calling for the Death of the Internet, is a ban on computing devices really that outlandish? Sure, the chances of them winning are slim in practice, but still.

  8. The Milagro Beanfield War by SuperBanana · · Score: 5, Insightful

    Do you know why it's illegal to collect rainwater in a barrel in Utah and Colorado? If there is only a gallon of water in the air over an acre of land, removing a quart does in fact change the balance of things.

    That's a load of pseudoscience, backing up a law that exists only for revenue, cronyism, and political control. If you store water off your roof or that falls from the sky, and then use it in your home or for irrigation, you're returning that water right back into the water table...in fact, use in the home returns it more effectively, because it is reintroduced a few feet under the soil by your septic system. You're not 'stealing' water- it doesn't go anywhere.

    If you want to know the real reason laws like that exist, read The Milagro Beanfield War (annoyingly, that link is about the movie, not the book.) I read it in middle school, and it gave me great insight into how big business pushes citizens around.

    Also, you can take a look at what the Israelis are doing to all of the rivers that feed into or border Palestine for a great example of how water is controlled for racial oppression and political power.

  9. No, more like this... by Grog6 · · Score: 5, Interesting

    A large pile of rocks will do the same thing, pretty much.

    http://www.european-pyramids.eu/wb/pages/european-pyramids/greece.php

    Same end effect, with no tech. Much cheaper, I'd bet. :)

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