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essential elements, Tag
- This periodic table shows which of Earth’s elements are at risk for depletion Mon, 6 Apr 15, 10:00pmAnd you thought we were just running the world out of oil. Ha. Think again. All around you are rare elements from the Earth. LCD screens have a bit of indium; LED’s, lasers, semi-conductors and the solar industry use gallium,...
- HYDRA: A Solar and Hydrogen-Powered Mobile Water Purification System Fri, 21 May 10, 4:03amWe’ve covered plenty of water purification systems. But in a world where one billion people don’t have access to clean drinking water, we can always use new ones. Enter the HYDRA, a solar-powered hydrogen fuel...
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