Solar Engine Radiometer w Tabletop Base and 4 Vanes

by CMI

Product Features

• The sun or light makes it runSpins from the heat of the sunThe vanes in the radiometer are dark and light in colorThe dark vanes absorb the rays, the light vanes reflect the rays3.5 in. W x 3.5 in. D x 5 in. H

Product Description

The sun or light makes it runSpins from the heat of the sunThe vanes in the radiometer are dark and light in colorThe dark vanes absorb the rays, the light vanes reflect the rays3.5 in. W x 3.5 in. D x 5 in. H

Product Details

• Item Weight: 5.6 ounces
• Shipping Weight: 1 pounds (View shipping rates and policies)
• ASIN: B000QDQGG8
• Average Customer Review: 4.0 out of 5 stars  See all reviews (1 customer review)
• Amazon Best Sellers Rank: #123,377 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

Customer Reviews

Most Helpful Customer Reviews

2 of 3 people found the following review helpful:

4.0 out of 5 stars Great Item, December 25, 2010

By 

Osiris - See all my reviews

Amazon Verified Purchase

This review is from: Solar Engine Radiometer w Tabletop Base and 4 Vanes (Misc.)

A radiometer otherwise known as a lightmill. A wonderfully useless apparatus, put it in a place with abundant direct light e.g. a sunny windowsill and the wheel will spin merrily untill the light runs out.Not the most useful of machines but I find it fascinating and relaxing to watch. And there you have it the entire point of this geeky toy it is for those who enjoy silly machines that do actually work yet never accomplish anything and for those with an interest in physics.I say: get one today, every home should have one.