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
C-Chute publishing three books, and being no longer dependent on "Astounding Science Fiction" for his fiction. "C-Chute" was adapted for radio in the anthology series "X Minus One", first broadcast on February 8, 1956. C-Chute "C-Chute" is a science fiction short story by Isaac Asimov. It was first published in the October 1951 issue of "Galaxy Magazine" and later appeared in Asimov's collections "Nightfall and Other Stories" (1969) and "The Best of Isaac Asimov" (1973). One of the few Asimov stories that feature aliens, the story deals with a group of people imprisoned by an alien race when their spaceship is