Ever wonder how geysers work? Our FYI editor explains these natural eruptions of steam and water.
By Bob Sillery (Editor), Diane Lanigan and Angela Palmer (Research)Posted 01.25.2002 at 1:19 pm 1 Comment
A geyser is a natural hot spring that erupts with a gush of steam and water. The most famous of these natural wonders, known for its predictability and beautiful plume, is Old Faithful in Yellowstone National Park. The average interval between its spoutings is 78 minutes. Here's what sets Old Faithful and other geysers off.