CROOKES RADIOMETER 14 cm
In a world where energy is scarce we’re relying more and more on the sun for power. The Crookes Radiometer can show you in real time the impressive power of light.
How does it work?
Inside the Crookes Radiometer is a rotor with 4 metal vanes. The vanes are silver on one side and black on the other.
When exposed to light or heat the black side of the vane heats up faster than the silver side causing a small current of air that turns the vanes! The vanes spin faster as light gets more intense. It's thermodynamics in action and fascinating to watch!
It's a real-world way to learn about the powers of thermodynamics. Who knows, it may inspire the next Einstein! Just stick it under the sun and watch it spin!
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Returns Policy
We will happily provide you with a free return, replacement or refund if your product is faulty, incorrect, not as described or damaged within 100 days of purchase. This doesn't happen very often, but mistakes do happen. Just contact us and we’ll sort something out straight away. We'll apologise profusely and advise you on how to send the item back to us; usually this will be by Australia Post REPLY PAID (at our expense).