Discover the Crookes Radiometer
An Authentic Crookes Glass Radiometer
The Crookes glass radiometer was invented by the physicist William Crookes. It measures the intensity of electromagnetic radiation from the sun or other light sources. When the black wings of this Crookes radiometer come into contact with the light rays, they begin to rotate, increasing in intensity according to the strength of the radiation.
A delicate, autonomous scientific object
The Crookes radiometer uses fine, delicate materials that intensify the sensitivity of the accessory. As a result, it can dazzle your guests with a magnificent display, while giving you the opportunity to discuss the importance of solar and light radiation in everyday life. Self-contained, this Crookes radiometer can be moved around as much as you like.
Features of the Crookes Radiometer
- Materials: Glass
- Dimensions: 13 cm x 7.5 cm
- Style : Glass radiometer
- To place on a piece of furniture in the sun
- Science gift idea
Frequently Asked Questions
How does a Crookes radiometer work?
Inside the bulb is a partial vacuum and a set of vanes, dark on one side and light on the other. The dark sides absorb more light and warm up, and the thin gas around them pushes the vanes round.
Does it need batteries?
No. It is fully self-contained and runs only on light. The brighter the light, the faster the vanes spin.
Where is the best place to put it?
Place it on a piece of furniture where it catches the sun, such as a windowsill or a sunny desk. Strong lamplight will also turn it.
How fragile is it?
It is made of fine glass, measuring 13 cm x 7.5 cm, so handle it gently and keep it somewhere it won’t be knocked.
Lab protocol What we guarantee with this order Carefully packed to arrive in one piece.
The Radiometer, when science magnifies your interior
Turn your home into a unique place by featuring a radiometer in your interior design. This science object was invented in 1875 by an English physicist, William Crookes. It converts warm light into energy when it strikes its fins, creating a rotary motion. Visit our selection of Radiometers, designer instruments that react to sunlight for a magnificent scientific show.Radiometer related products
David Wilson –
Bought this for my son who’s really into science. He was over the moon watching the wings spin in the sunlight. It’s become a talking point in our home. Brilliant piece!
Tom Harris –
Chuffed with my new radiometer! It spins smoothly and is quite mesmerising. Only wish it was a tad bigger for the price.
Jenny Patel –
my grandson loved seeing the wings move! His face lit up with curiosity. Such a simple yet engaging gadget. Worth every penny.
Emma Clarke –
The radiometer adds a nice touch to my desk, and it’s quite soothing to watch too. The design is spot on, but think the instructions could be a bit clearer.
Ben O’Connor –
Fascinating gadget! The mechanism of the radiometer is simply captivating, especially in good sunlight. Can’t stop fiddling with it!
Lucy Green –
the product was fine once it arrived, but I found the packaging a bit disappointing, not quite the quality I’d expected for a gift.
Oliver Smith –
Using this radiometer as a decorative piece, and it’s definitely unique. Spins well, though the price feels a bit on the steep side.
Margaret Hollis –
Bought this for my grandson Alfie, who’s seven, and he was glued to it all afternoon. He kept moving it in and out of the sunshine on the windowsill and shouting “Nana, it’s going faster!” Cracking little gift, and it looks lovely on his shelf too.
Daniel Whitcombe –
spot on. sits on my desk and the little vanes spin round whenever the light hits them, no batteries or anything.