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Par Tolar dans MMaxi Water le 29 Août 2007 à 13:42A waterfall is usually a geological formation resulting from water, often in the form of a stream, flowing over an erosion-resistant rock formation that forms a sudden break in elevation or nickpoint. Some waterfalls form in mountain environments where the erosive water force is high and stream...
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Par Tolar dans MMaxi Water le 20 Mai 2007 à 08:06We have used running water as an energy source for thousands of years, mainly to grind corn. The first house in the world to be lit by hydroelectricity was Cragside House, in Northumberland, England, in 1878. In 1882 on the Fox river, in the USA, hydroelectricity produced enough power to light...