Crookes Radiometer 22cm

Crookes Radiometer 22cm: In a world where energy is scarce, we’re relying more and more on on the sun for power. But how does it work? The Crookes Radiometer can show you in real-time the impressive power of light. The vanes inside an airtight glass bulb rotate when exposed to light, spinning faster as the light gets more intense. It’s real-life thermodynamic science in action, without any of the hard work or complicated stuff – just stick it under the sun and watch it spin!

Learn all about thermodynamics with the Crookes Radiometer. When exposed to light or heat, the vanes will spin. Comes in 18cm and 22cm high models and makes for an educational decoration.

Features

• • Solar-powered

• • The vanes spin when in direct sunlight – the more intense the light, the faster it spins!

• • No power supply required

• Perfect for wannabe Einstein’s

Specifications

• • Completely assembled

• • Glass outer construction

• • Airtight bulb with a partial vacuum

• • Rotating spindle on-axis

• • Lightweight metal vanes

• Suitable for children under supervision

Not suitable for kids under 3

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Recommended Age

educational toys for 6 year olds