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Description
RadiometerA what? Radiometer is just a fancy name for this Solar Engine. It demonstrates the principles of energy conversion and shows how heat and mechanical energy are products of energy conversion. It sleeps at night, but spins up to 3,000 rpm in direct sunlight or in front of an incandescent bulb. The 5" high clear glass bulb is 3" in diameter, and ready for action. List of activities included. Ages 8 and up. WARNING: CHOKING HAZARD This kit contains small
A what? Radiometer is just a fancy name for this Solar Engine. It demonstrates the principles of energy conversion and shows how heat and mechanical energy are products of energy conversion. It sleeps at night, but spins up to 3,000 rpm in direct sunlight or in front of an incandescent bulb. The 5" high clear glass bulb is 3" in diameter, and ready for action. List of activities included. Ages 8 and up.
WARNING: CHOKING HAZARD - This kit contains small parts. Not for children under 3 years.
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4.5 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great reporting!
Format: Kindle
I greatly enjoyed this great reporting from these two reporters!! This is quality work and my hope is that both are nominated for the Pulitzer prize!!
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Reviewed in the United States on September 17, 2025
★★★★★ 5
Great book
Format: Hardcover
We love the FGTEEV books!
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Reviewed in the United States on May 31, 2026
★★★★★ 5
FGTeeV:
Format: Hardcover
The 11 yr old loves it.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Perfect, hardback!!!
Format: Hardcover
Bought this book for my teens. They love it. Perfect hardback quality for the price. They have the whole series
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Reviewed in the United States on May 5, 2026
★★★★★ 5
perfect book
Format: Hardcover
awesome book
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Reviewed in the United States on May 11, 2026