In order to determine the rotation speed of a turntable platter it is necessary to acquire a stroboscope disc. Some platters have strobe indicators printed on the side or in the center. If your country's AC mains electricity is 60Hz, the stroboscope must be made for that frequency.
Jicama, also known as yam bean, is a round, fleshy taproot vegetable of bean family plants. Its underground starchy root is one of the popular edible tuber-vegetables grown in many parts of Central American, South Asian, Caribbean, and some Andean South American regions.
Yucca root is a warm climate vegetable. Yucca root, also known as cassava, is a tubular-shaped root vegetable that bares a resemblance to sweet potatoes. In South America, where it is commonly grown, yucca is used as a side dish, sliced up and made into chips or grated and made into pancakes, which are similar to potato pancakes.