Eisco Labs Crook's Radiometer On Plastic Base | 2.75" (70mm) Diameter | Science Education Demo

Hey science fans and curious minds!

Check out this classic Crook's radiometer from Eisco Labs.

It's one of those fascinating gadgets that makes you stop and stare.

You've probably seen one before—it's that glass bulb with a little pinwheel inside that spins when you put it in the light.

It's a perfect conversation starter for a desk or a fantastic hands-on teaching tool for the classroom.

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Here's how it works: the bulb is partially evacuated, and the vanes are black on one side and white on the other.

When light hits them, the black side gets warmer, and the air molecules near it get a little more energy and push the vane.

It's a great way to demonstrate concepts like radiation pressure, thermodynamics, or just the amazing fact that light carries energy.

This one has a 2.75-inch (70mm) diameter glass bulb, and it's securely mounted on a sturdy plastic base, so it's ready to display right out of the box.

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It's brand new from Eisco Labs, a trusted name in science education.

The MPN is PH0418A.

Whether you're a teacher looking for a demo tool, a parent wanting to spark a kid's interest in science, or just someone who loves cool, retro-scientific decor, this radiometer is a great pick.

Watch it spin and let the learning begin!