Plunge pool softer or fractured rock has been eroded back to a knickpoint, water continues to bombard its base. Because this rock is often less resistant than overlying strata, the water from the higher elevation continues eroding downward until an equilibrium is achieved. A somewhat similar bowl-shaped feature developed by flowing water, as opposed to falling water, is known as a scour hole. These occur both naturally and as a result of bridge building. Plunge pool A plunge pool (or plunge basin or waterfall lake) is a deep depression in a stream bed at the base of a waterfall or shut-in. It
Bus plunge Bus plunge Bus plunge stories are a nickname for a journalistic practice of reporting bus mishaps in short articles that describe the vehicle as "plunging" from a bridge or hillside road. The phenomenon has been noted in "The New York Times", which once published as many as 14 "bus plunge" stories per year in its foreign news section. The stories exist not only because of their perceived newsworthiness but because they could be reduced to a few lines and used to fill gaps in the page layout. Further, the words "bus" and "plunge" are short, and can be used in