Radiometer
Retail Price: $12.50
Our Price: $12.45
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Item: TC003
Quantity on Hand: 12
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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.
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Toy Value Index: 9.09
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The Toy Value Index is a Fat Brain Toys exclusive intended to quantify the overal play value of a given toy or game. We do this by taking our customers' feedback on (QUALITY + TIME PLAYED + AGE TRANSCENDENCE)/PRICE.
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Fat Brain Index: 8.24
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The Fat Brain Index is another Fat Brain Toys exclusive that factors in 14 different traits that we've identified that make a toy "Fat Brain Worthy".
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UPC
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043067018007
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Manufacturer SKU
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01800
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Manufactured In
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 Indonesia
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Recommended Age
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7+
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WARNING:
CHOKING HAZARD - Small parts.
Not for children under 3 yrs.
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Radiometer has been reviewed 23 times with an average rating of 4.48. Click here to view all Radiometer reviews...
Fun with Light
Posted 7/7/2009 by Alex B.
Rating: 
Setting: Other
Good quality toy. Was as expected.
A rating of Radiometer
Posted 5/5/2009 by Michele Mills
Rating:
Good, but I would prefer it had a suction base so it would stay put on the teacher's desk
Review for Radiometer
Posted 8/7/2008 by Andre M. Bordelon
Rating: 
It takes intense direct sunlight to operate the instrument. This differs from other pricier ones I have seen.
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1 of 1 customers found this review helpful.
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Radiometer and Prism
Posted 3/26/2008 by Fred
Rating: 
Setting: Home
We love the radiometer and prism we purchased through Fat Brain toys. Our 5 year old was amazed. He was so excited that he took them to show and tell at school to show all his class mates. I like to get him interested in science and the natural world. Thanks for offering products like this Fat Brain!
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2 of 2 customers found this review helpful.
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Radiometer
Posted 12/27/2007 by Christopher A. Wolter, D.D.S.
Rating:
A fun little gadget that spins wildly when placed in direct sunlight. I had one of these as a kid about 35 years ago. It spun so many millions of revolutions over the years, that the spindle actually wore a hole through the glass thimble! A fun bit of nostalgia that I now share with my kids!
Click here to view more Radiometer reviews...
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When will it be shipped?
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This product is in stock and will ship next business day.
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I have a question about this product. Can I talk to a real person?
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Our customer service staff is standing by to answer your questions 9 am to 5 pm Central. You can email us or call us toll-free at 1-800-590-5987.
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 BRANDS
Tedco
GENDER
Female
Male
INTERESTS
Science
TOY CATEGORIES
Science & Nature
Alternative Energy & Environmental Science
Teaching Toys & Tools
Subjects
Science Education
TOYS BY AGES
7-8 years
9+
Teens
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Elkhorn, Nebraska USA 68022