Here’s a nice animation showing the water cycle: Follow the red dot to track the water as evaporates, forms into clouds, condensates, rains down, gets absorbed into ground water, seeps into rivers and lakes, flows down into the ocean, and evaporates again to complete the cycle.
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We are working on our movie for the D.R.I.P.S. presentation in Paris this summer. To really explain how our invention would work, we need to give a few definitions and provide some physics background. So this post is a collection of useful concepts and definitions about water in the air. The Hydrologic Cycle This...
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In September 2005 issue of Scientific American Journal, there was an article: “The Big Potential of Small Farms” by Paul Polak (August 22, 2005). Paul Polak started IDE—International Development Enterprises—in 1981 to come up with good solutions to water problems. The article describes IDE’s work and the problems they are trying to solve. There’s...
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This is map of total rainfall around the world. Source: NOAA.
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Information on evapotranspiration from Wikipedia: “Potential evapotranspiration supplements the measurement of rainfall in providing a scientific measurement-based definition of a desert. The water budget of an area can be calculated using the formula P − PE ± S, wherein P is precipitation, PE is potential evapotranspiration rates and S is amount of surface storage...
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We’ve got an invitation to The Energy Lab — EDF’s new pavilion in France, featuring the winning designs from the EDF Sustainable Design Challenge....
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Our project and its video was just posted on The Water Channel! Here’s a description of what they do: TheWaterChannel was launched at the...
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So now we have three prototypes: two from India and one locally-produced. They are very different. But the latest version is what we are...
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We just got our first glimpse of DRIPS from India — these were produced in India and are being shipped to us now. Can’t...
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This year (2011), we are still focusing on food. We want to know the true cost of food — its price; the distance it...
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