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 ...

Researchers at the University of Texas at Austin have miniaturised a toy into a tiny motor that could one day power medical devices or harvest solar energy. The device, called a radiometer, is based ...

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, ...

LONDON Physical Society, May 8.-Prof. Gladstone, F.R.S., president, in the chair.—Mr. Crookes, F.R.S., exhibited and described some very important experiments 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 ...