A Crookes radiometer, despite what many explanations claim, does not work because of radiation pressure. When light strikes the vanes inside the near-vacuum chamber, it heats the vanes, which then ...

It’s a simple device – a set of vanes mounted on a spindle, enclosed in a partially evacuated glass bulb. Each vane is silvered on one side and blackened on the other. When the Crookes radiometer is ...

The radiometer consists of four vanes are black on one side and white on the other, able to freely rotate about a pivot in a partial vacuum. When light shines on the vanes broadly, the vanes rotate ...

It might be too soon to consider the innards of the old CRT monitor at the back of your closet to be something worth putting on display in your home or workshop. For that curio cabinet-worthy appeal, ...

In this video I see how fast we can get a radiometer to spin by shining the world's brightest flashlight on it. Then I talk about the real reason the Crookes radiometer spins when you shine light on ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Crookes-type radiometer with a ...