Shopping Cart | My Account   Search by product name, topics, or part: Products Blocks & Marbles Dino Horizons Ein-O Science Gyroscopes Solar Power Science Prisms Knowledge Wheels Mindz Trixy & Troy USA Toys 4D Dinosaur Puzzles 4D Human Anatomy 4D Robot Kits 4D Sea Life Puzzles 4D Vision Animal 4D Vision Science Animator's Canvas Home > Solar Power > Radiometer Zoom Radiometer Item is available. $12.50 QTY Description Experience this sphere powered by the sun! The vanes in the Radiometer are alternately dark and light in color. When the light strikes these vanes it transfers heat to each one - but not at the same degree. The lighter vane reflects the rays and the darker vane absorbs the rays. The stronger the light, the more energy there is causing the vanes to spin faster.. Previous | Next   Privacy Policy | Ordering Info | Safety & Security | Site Map Dino Horizons and Ein-O Science are trademarks of COG Ltd. Copyright 2007 TEDCO, Inc. All rights reserved.