Whitewater, usually spelled white water in both American and British English, is formed in a rapid, when a river's gradient increases enough to disturb its laminar flow and create turbulence, i.e. form a bubbly, or aerated and unstable current; the frothy water appears white. The term is also used loosely to refer to less turbulent but still agitated flows.^{[citation needed]}

The term "whitewater" also has a broader meaning, applying to any river or creek itself that has a significant number of rapids. The term is also used as an adjective describing boating on such rivers, such as whitewater canoeing or whitewater kayaking.^{[citation needed]}

Four factors, separately or in combination, can create rapids: gradient, constriction, obstruction and flow rate. Gradient, constriction and obstruction are streambed topography factors and are relatively consistent. Flow rate is dependent upon both seasonal variation in precipitation and snowmelt and upon release rates of upstream dams.^{[citation needed]}

Rush Hudson Limbaugh III ( /ˈlɪmbɔː/; born January 12, 1951) is an American radio talk show host and political commentator. Since he was 16 Limbaugh has worked a series of disc jockey jobs. His talk show began in 1984 at Sacramento radio station KFBK, featuring his ongoing format of political commentary and listener calls. In 1988 Limbaugh began broadcasting his show nationally from radio station WABC in New York, New York. He currently lives in West Palm Beach, Florida, from where he broadcasts the The Rush Limbaugh Show, the highest-rated talk-radio program in the United States.

In the 1990s Limbaugh's books The Way Things Ought to Be (1992) and See, I Told You So (1993) made The New York Times Best Seller list. Limbaugh frequently criticizes, in his books and on his show, what he regards as liberal policies and politicians, as well as what he perceives as a pervasive liberal bias in major U.S. media.

Rush Hudson Limbaugh III was born in Cape Girardeau, Missouri, the son of Mildred Carolyn "Millie" (née Armstrong) and Rush Hudson Limbaugh, Jr. His father was a lawyer and a U.S. fighter pilot who served in the China Burma India Theater of World War II. His mother was a native of Searcy, Arkansas. The name "Rush" was originally chosen for his grandfather to honor the maiden name of family member Edna Rush.