Tyndall beam

Tyndall beam
Tyn·dall beam 'tind-əl- n the luminous path formed in the Tyndall effect by the breaking up of the entering light by the suspended particles called also Tyndall cone
Tyndall John (1820-1893)
British physicist. Tyndall was appointed professor of natural philosophy at the Royal Institution in London. He studied the diffusion of light by large molecules and dust. Basing his experiments on the fact that blue light more than any other light color tends to scatter, he demonstrated that the sky's blue color results from the scattering of the sun's rays by dust.

Medical dictionary. 2011.

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  • tyndall beam — noun or tyndall cone |tindəl Usage: usually capitalized T Etymology: after John Tyndall died 1893 British physicist : the luminous path formed in the Tyndall effect by the breaking up of the entering light by the suspended particles * * *… …   Useful english dictionary

  • Tyndall beam — Physical Chem. the visible path of light produced by the scattering action (Tyndall effect) of the particles in a colloidal solution on a beam of light passed through it. [named after J. TYNDALL] * * * …   Universalium

  • tyndall cone — noun see tyndall beam …   Useful english dictionary

  • Tyndall effect — [tin′dəl] n. 〚after John Tyndall (1820 93), Brit physicist〛 Physics the scattering and polarization of a light beam by colloidal particles in a dispersed system * * * ▪ physics also called  Tyndall phenomenon        scattering of a beam of light… …   Universalium

  • Tyndall effect — n the scattering of a beam of light when passed through a medium containing small suspended particles (as smoky or mist laden air or colloidal solutions) called also Tyndall phenomenon * * * a strong beam of light passes through a true solution… …   Medical dictionary

  • Tyndall effect — [tin′dəl] n. [after John Tyndall (1820 93), Brit physicist] Physics the scattering and polarization of a light beam by colloidal particles in a dispersed system …   English World dictionary

  • Tyndall effect — noun the phenomenon in which light is scattered by very small particles in its path; it makes a beam of light visible; the scattered light is mainly blue • Hypernyms: ↑optical phenomenon * * * noun also tyndall phenomenon Usage: usually… …   Useful english dictionary

  • Tyndall , John — (1820–1893) British physicist Tyndall was born at Carlow (now in the Republic of Ireland) and after leaving school began work as a draftsman and civil engineer in the Irish Ordnance Survey. He later became a railway engineer for a Manchester firm …   Scientists

  • Tyndall cone — the murky cone of scattered light seen when a colloid is viewed at right angles to the incident beam, due to the Tyndall effect; it distinguishes colloids from crystalloids …   Medical dictionary

  • Tyndall effect — /ˈtɪndl əfɛkt/ (say tindl uhfekt) noun the scattering of light by particles of matter which makes a beam of light visible by illuminating the particles of dust floating in the air. {named after John Tyndall, 1820–93, Irish physicist} …  

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