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.
Sweet Like an Apple, Used Like a Water Chestnut. Jicama is incredibly versatile. Served raw, it has a crunchy, white flesh that tastes similar to a not-too-sweet apple. It can be cut into chunks and added to salads, or cut into strips and eaten as part of a raw vegetable platter with guacamole or other dips.