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.
The skin of the jicama is not edible. First, scrub well to remove dirt, then peel. Grate or cut into cubes, strips, or slices. To avoid discoloration after cutting, submerge jicama slices in a bowl with water and a few drops of lemon juice.tore uncut jicama in a cool, dry place uncovered for up to 3 weeks (as you would potatoes). Jicama will mold if it gets wet. Once jicama is cut or sliced, refrigerate in a plastic bag up to 2 weeks.