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 ...

This is a gorgeous effect, and one that you can set up very easily. Either let smoke pour over a drop like a waterfall – or save it up inside a glass, and pour it out like water. You just need a ...

Seven Sisters Waterfall: Waterfalls around the world are known for height, power, and unique formations, but some stand out because of rare natural patterns shaped by geography and climate. One such ...