A long-time candidate as a clean fuel of the future, hydrogen can be obtained from water using solar- or wind ... economically and safely. Mitsubishi Power, a member of Mitsubishi Heavy Industries ...
It is simply power derived from the Earth’s internal ... or for growing plants in greenhouses. Some U.S. cities pipe geothermal hot water under roads and sidewalks to melt snow.
Engineers have now developed miniature robots to patrol the pipe network ... UK household uses nearly 350 litres of water every day, according to the Energy Saving Trust. We visited the site ...