Hmmm…interesting, a digital clock and calendar powered by food. This fruit powered clock combines micro-electronic technology with the natural electrical potential of a fresh fruit or vegetable. It uses the original scientific principles on which all modern electrical storage batteries are based. Just add a fresh orange, apple, lemon, banana or any convenient fruit or vegetable to the supplied components in this kit and you have the perfect synthesis of nature’s own electrical power resource and the accuracy of a digital clock. It is available for $14.95 at Physlink.