Crookes Radiometer

The Crookes Radiometer is one of those historical curiosities that even today has scientists hotly debating back and forth about how it actually works.

The short version of the description is that the device contains a spinning series of fan blades, the inside of the glass bulb is almost a vacuum and when you place it in front of a light source, the fan blades begin to spin. The rate of spin increases with the power of the light source, though exactly how this all works is still not entirely clear.

The Radiometer pictured here is 8.5 inches high and is designed to adorn a desk, windowsill or mantlepiece. You can pick one up for €45.00 from Concrete Matter, then sit back and enjoy the show.

Grab yours here.

Ben Branch Profile Picture Silodrome - Crookes Radiometer
Founder & Senior Editor Silodrome

Ben Branch has had his work featured on CNN, Popular Mechanics, the official Smithsonian Magazine, Road & Track Magazine, the official Pinterest blog, the official eBay Motors blog, BuzzFeed, and many more.

Silodrome was founded by Ben back in 2010, in the years since the site has grown to become a world leader in the alternative and vintage motoring sector, with millions of readers around the world and hundreds of thousands of followers on social media.

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