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.
While some jicama can weigh up to 50 pounds, they're best when harvested at around five pounds. While many vegetables and fruits are common, others are not, but that doesn't mean they're not an excellent food-just unfamiliar. For one thing, jicama plants thrive in tropical regions.