John Tyndall, Irish physicist, giving a lecture

John Tyndall, Irish physicist, giving a lecture

H420/0126 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 26.3MB

Downloadable file size: 2.6MB

Price image Pricing

Please login to use the price calculator


Credit: SCIENCE PHOTO LIBRARY

Caption: John Tyndall. Engraving of John Tyndall (1820-93), giving an electricity lecture at the Royal Instit- ution in London, Britain, in 1870. He was a sur- veyor & engineer before studying physics & becom- ing a professor at the Royal Institution in 1854. He was a prolific writer on a number of subjects. He 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 shorter wavelength (blue) components of sunlight more than the longer wavelength (red) components.

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

Keywords: electricity lecture, historical, history, john, lecture, light, light scattering, physics, physics lecture, pioneer, portraits, proposer, scattering, sky, surname t, tyndall, tyndall effect, why it is blue

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