essential elements, Tag

And 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,...

We’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...