A Faith Fitzpatrick, research hydrologist at the U.S. Geological Survey's Wisconsin Water Science Center: It basically takes four things to make a waterfall. The first one is, of course, water. Second ...
Sue Miley looks up from her Saturday morning coffee and out across her back yard. In the shade of a huge screened enclosure, water tumbles over a cairn of rocks into a fern-shaded spa and from there ...
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