Portrait of Sir William Crookes, 1832-1919

Portrait of Sir William Crookes, 1832-1919

H403/0074 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 28.5MB

Downloadable file size: 2.0MB

Price image Pricing

Please login to use the price calculator



Caption: Portrait of English physicist Sir William Crookes (1832-1919), discoverer of the element Thallium. Crookes is probably best known for his invention of the radiometer, a device consisting of a set of pivoted vanes in a vacuum. One side of each vane is blackened, the other shiny, & in the presence of sunlight the vanes turn steadily. Although never more than a toy, Crookes' radiometer did provide evidence for the kinetic theory of gases. Crookes developed methods for producing better vacuums & studied cathode rays, showing that they were deflected by a magnet. He was the first to realise that they were beams of charged particles. Crookes also did important work on radioactivity.

Release details: Model release not available. Property release not required.

Keywords: crookes, portraits, radiometer, sir william, surname c

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.