Turntable speed / pitch / RPM. Vinyl records are manufactured to be played back at a certain speed. Most 12 inch (diameter) long-play records are played back at 33 1/3rd revolutions per minute. Most 7 inch records require 45 RPM.
Jicama is a large, bulbous root vegetable. A bulb may weigh one or two pounds and has a rough 'n' tough brown skin which should be peeled before eating or cooking.
Known to the Nahuatl-speaking people of Mexico as xicamatl, the jicama, or Mexican turnip, is a member of a group of plants known by the peculiar designation, yam beans. Jicama is actually a member of the Bean Family, and produces bean pods that look something like lima beans, but it's the root of the plant that is most commonly consumed. There are two varieties of jicama root, the jicama de agua, which produces a watery juice, and the jicama de leche, which produces a milky sap.