Solar Battery Slot Car Set and the hedgehog will roll

and the hedgehog will roll into a ball and tumble backwards

chrome reverse drag wheels

Build Stock

cooled lava stone

Some parts chrome plated

Solar Battery Slot Car Set and the hedgehog will rollThe Solar Battery is comprised of a number of photo voltaic cells. Each cell is made from a slab of semiconductor crystal. When light shines on the cell voltage is produced that can create an electrical current in a circuit. The greater the light intensity on the solar battery the greater is the current it can produce. Intended for use to familiarize students and or hobbyists with functional solar cell principles, and practical applications of solar