Science Source Stock Photo

John Tyndall

Description: John Tyndall. Coloured portrait of the Irish physicist John Tyndall (1820-93). Tyndall was a surveyor and engineer before studying physics and becoming a professor at the Royal Institution, London, England, in 1854. He wrote on a number of subjects and studied light beams passing through various substances. In 1869 he discovered the Tyndall Effect, in which light scattering by colloidal particles in a solution makes the light beam visible from the side. He realised that the sky is blue because dust particles in the air scatter the shorter blue wavelengths of sunlight more than the longer red wavelengths. Taken from A Modern Portrait Gallery, volume 3 (1881).

Credit:

SPL/Science Source

Unique identifier: SS2177065

Legacy Identifier: SC8376

Type: Image

Size: 2753px × 3931px (~30 MB)

Add to cart

Direct link to Image

Copy URL to clipboard

Add to lightbox My First Lightbox

Add to cart

Company

Connect