The vanes, or wings, affixed to the center pole of this solar radiometer are alternately dark and light in color. When the light strikes these wings it transfers heat to each one - but not to the same degree. The lighter wings reflects the sun's rays and the darker wings absorbs. The stronger the light, the more energy present to heat up the darker side of the wing causing the wings to spin faster. The scientific property that this elegant glass device demonstrates is heat transfer. The wings of the radiometer spin under natural solar light or a regular light bulb. Perfect for science projects, as a gift or as a desk amusement!
Use this cool Sea Monkeys zooquarium to teach your child how to take care of a pet!
Get this great introductory chemistry kit for your favorite young scientist!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Make the coolest 3D pin art on your desk with this amazing desk toy.
Use this awesome prism to teach about optics and light in the classroom setting!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
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