DORAMI Clear Solar Power Crookes Radiometer Sun Light Energy Glass Windmill Spinning Vanes
Key features
- •When you put the radiometer in the sun, the vanes will keep spinning.
- •Put it in the office or the living room is very beautiful.
- •It is a creative gift, we can send it to our friends or family.They will love it!
- •It is made of glass,so it is fragile. It is suitable for children over 12 years of age.
DORAMI Clear Solar Power Crookes Radiometer Sun Light Energy Glass Windmill Spinning Vanes
List Price: $45.38$40.84DEALYou Save: $4.54 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.4
out of 5
Based on 10 reviews
5★
90%
4★
10%
3★
0%
2★
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1★
0%
quite a nice geek gift
Dagwood✓ Verified Purchase•November 7, 2023
I know whining complaining negative reviews go with the territory but the all glass design and level of vacuum in this particular item are spot on. It took about 3-4 minutes for the rotor to settle down after opening but once it was motionless I held the flame of a disposable lighter about 4 inches away and saw slow rotation. The big surprise was the led flashlight I usually carry. It's somewhere around 280 lumens and I got what I would estimate to be a respectable 20 r.p.m. out of the radiometer by holding the flashlight almost a foot away! I hesitate to throw shade at other designs but this all glass version just seems to make sense: If it works well when you get it the only thing I can imagine that would degrade performance would be an unfortunate drunken accident. I've only had it for about 30 minutes and it's New Years Eve so I am in the process of getting drunk so.....Knock on wood,wish me luck. (update: A lit cigarette spins it from about 1.5 inches away from the glass! )
It spins
Thomas ✓ Verified Purchase•October 29, 2023
This radiometer HATES uv rays. It gets so angry when it interacts with the radiation it spins. Doesn't get as angry on cloudy days. Gets angrier the closer it is to the equator.
Simple and inexpensive cool physics gift
TBro✓ Verified Purchase•October 12, 2023
It's a gift so I took it out shortly and put it next to a bright lamp, and it seemed to start to move. So I assume it will work perfectly next to a sunny window.
I got these for all my friends!
Greg Day✓ Verified Purchase•September 26, 2023
Not only do I have these on multiple window sills around the house, I also bought them for a bunch of my friends and they said their work satisfaction from watching this thing spin in their office has increased by 20% 😂 very very cool and educational little gadget. Watch Technology Connections video on this if you want to actually know how it works.
Does what it’s supposed to do
Pyracantha✓ Verified Purchase•September 20, 2023
The media could not be loaded. Compared to the standard, kid's black plastic base model, it holds it's own.
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