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View Diary: 48 Hours for East Africa (50 comments)

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  •  I Don't Know. I Really Don't. (5+ / 0-)
    Recommended by:
    Chacounne, Nulwee, Matt Z, cai, JekyllnHyde

    Most folks know Dean Kamen for his Segway. But that isn't where he made his money. He made a number of pretty amazing medical devices, so he has experience in this area. Heck he created a wheel chair that climbs stairs.

    When opportunity calls pick up the phone and give it directions to your house.

    by webranding on Mon Aug 08, 2011 at 01:12:06 AM PDT

    [ Parent ]

    •  I remember that wheelchair ... (4+ / 0-)
      Recommended by:
      webranding, Matt Z, cai, JekyllnHyde

      VERY cool !

      Seems like except in very specific areas innovation isn't being rewarded like it used to be.

                             Just my two cents,
                                   Heather

      Torture is ALWAYS wrong, no matter who is inflicting it on whom.

      by Chacounne on Mon Aug 08, 2011 at 01:16:09 AM PDT

      [ Parent ]

      •  Well I Just Found An Article On The (5+ / 0-)

        water machine. He calls it a Slingshot. It has been around since 2005. Right now they cost $100,000 each. So clearly price is an issue. But he thinks if they can be massed produced, the price would be under $2,000.

        The power machine, which he calls the Stirling, is the size of a washing machine and runs off cow dung as well.

        Each machine continuously outputs a kilowatt of electricity. That may not sound like much, but it is enough to light 70 energy-efficient bulbs. As Kamen puts it, "If you judiciously use a kilowatt, each villager can have a nighttime."

        This is what the article says about the Slingshot:

        The Slingshot works by taking in contaminated water – even raw sewage -- and separating out the clean water by vaporizing it. It then shoots the remaining sludge back out a plastic tube. Kamen thinks it could be paired with the power machine and run off the other machine's waste heat.

        Compared to building big power and water plants, Kamen's approach has the virtue of simplicity. He even created an instruction sheet to go with each Slingshot. It contains one step: Just add water, any water.

        When opportunity calls pick up the phone and give it directions to your house.

        by webranding on Mon Aug 08, 2011 at 01:23:17 AM PDT

        [ Parent ]

        •  That is really, really, really cool :) (2+ / 0-)
          Recommended by:
          cai, JekyllnHyde

          I hope he finds customers and a way to get them mass produced.

                                             Hugs,
                                             Heather

          Torture is ALWAYS wrong, no matter who is inflicting it on whom.

          by Chacounne on Mon Aug 08, 2011 at 01:50:28 AM PDT

          [ Parent ]

        •  It has to work under the worst conditons possible (4+ / 0-)
          Recommended by:
          samanthab, Chacounne, cai, JekyllnHyde

          Generally, the best water purifying devices are the simplest. In this situation, there is little or no water to purify. People are finding water to drink but crops and animals have died in the withering sun.

          look for my eSci diary series Thursday evening. "It's the planet, stupid."

          by FishOutofWater on Mon Aug 08, 2011 at 05:59:18 AM PDT

          [ Parent ]

        •  I've read that even several layers of sari cloth (2+ / 0-)
          Recommended by:
          Chacounne, JekyllnHyde

          as a filter can significantly reduce the presence of vibrio cholera in drinking water.  It's not perfect, but it's been proven to reduce cholera cases when used in Bangladesh.

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