What are the vanes made of? Both the black and silver.

There are not two different kinds of vanes. Each vane is made of a lightweight metal with one side polished and the other painted black.

I plan on using this to explain thermal energy in my classroom. Does it work well?

Absolutely! It functions perfectly and is well made. I had one growing up and it always intrigued me. I got one for each of my kids when they got homes. Love it!

whats the height ? and other dimensions if you have

Hello, thank you for your question. The height of this product is 5.5 inches and the width is 3 inches. Thanks again!

Does it need direct sun light to work?

No, but near. And the light needs to be directional. I.E. if there's a lot of light but it's bouncing off the walls or coming in other windows, those reflected waves will cancel out some. In my dining room I can sit it on the table near a large window with sun but in the shade and it will turn slowly. And I can make it turn slowly with my LED flashlight.

Clear Solar Power Crookes Radiometer Sun Light Energy Glass Windmill

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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¥10355

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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Description

☀️ Spin into the future of light-powered elegance!

ELEGANT HANDMADE GLASS - Exquisitely crafted crystal-clear glass blends science with sophisticated décor.
SUN POWERED KINETIC ART - Harness natural & artificial light to mesmerize your space with dynamic motion.
GIFT OF EVERLASTING MOTION - A unique, thoughtful present that spins continuously with light, symbolizing enduring connections.
INTERACTIVE PHYSICS INSIGHT - A captivating tool to visualize light, heat, and vacuum principles—perfect for curious minds.
PRECISION VACUUM ENGINEERING - Ultra-low friction vacuum bulb ensures smooth, high-speed rotation up to 500 RPM.

The DORAMI Clear Solar Power Crookes Radiometer is a precision vacuum glass bulb device with four vanes that spin up to 500 RPM when exposed to sunlight or artificial light. Handmade from crystal-clear glass, it serves as both a captivating desktop decoration and an educational physics tool, illustrating principles of light, heat, and vacuum dynamics. Ideal for professionals seeking a blend of science, art, and sustainable energy inspiration in their workspace or as a unique gift.

Specifications

ASIN	B075CRFG38
Age Range Description	Adult
Best Sellers Rank	#74,646 in Toys & Games ( See Top 100 in Toys & Games ) #27 in Solar Power Kits
Brand Name	DORAMI
Customer Reviews	4.1 4.1 out of 5 stars (806)
Educational Objective	Imagination Development
Item Dimensions	6.3 x 4.09 x 4.02 inches
Manufacturer	DORAMI
Manufacturer Minimum Age (MONTHS)	180
Manufacturer Part Number	unknown
Material Type	Glass
Number of Items	1
Size	4.09 inches (W) x 6.3 inches (L) x 4.02 inches (H)
Theme	Love
UPC	602463521995

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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¥10355

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews

Clear Solar Power Crookes Radiometer Sun Light Energy Glass Windmill Spinning Vanes

Description

Specifications

Common Questions