Radiometer
Key features
- •Vanes in the Radiometer are alternately dark and light in color
- •Vanes transfer heat to each one but not at the same degree
- •Lighter vane reflects the rays and the darker vane absorbs the rays
- •For ages 7 and above
- •Recommened Age 6 thru adult
Radiometer
List Price: $27.76$24.98DEALYou Save: $2.78 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (16)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.1
out of 5
Based on 10 reviews
5★
20%
4★
10%
3★
20%
2★
10%
1★
40%
Like 0 RPMs
David Ferreira•September 22, 2017
This product simply doesn't work AT ALL. I just got it (appears to have been packed with all the skill and intelligence of an injured llama).
I put it in the back yard at 3:00 pm on a sunny Texas September afternoon and did it spin? Nope.
I have video -- it's impressive how it doesn't work. I would think that under these conditions even the most poorly-built radiometer would spin a little bit. But this one does not spin AT ALL. Like 0 RPMs.
I checked to make sure it wasn't jammed or stuck against the glass. I made it spin by gently moving it rhythmically for a few seconds. But sitting in the directed (intense) sunlight simply did NOT work at all.
I put it in the back yard at 3:00 pm on a sunny Texas September afternoon and did it spin? Nope.
I have video -- it's impressive how it doesn't work. I would think that under these conditions even the most poorly-built radiometer would spin a little bit. But this one does not spin AT ALL. Like 0 RPMs.
I checked to make sure it wasn't jammed or stuck against the glass. I made it spin by gently moving it rhythmically for a few seconds. But sitting in the directed (intense) sunlight simply did NOT work at all.
Next time use a box instead of an envelope.
Ana•May 7, 2017
Arrived broken!!
DOA
RWB•October 18, 2016
would not work upon arrival
Needed to re-glue the base when I received it. ...
Spencer Smith•August 23, 2016
Needed to re-glue the base when I received it. Extremely cheaply built but price defines that. It does work though.
My mom kept a Radiometer in our window growing up ...
Madeline R. Daniels•December 11, 2015
My mom kept a Radiometer in our window growing up, so I had to get one for my first real apartment. It somehow got lost in a move, so this is my second from Amazon. It spins away in the sunlight and keeps me company in the kitchen (that sounds sadder than it really is).
Page 1 of 2
