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The Tyndall effect is light scattering by particles in a colloid such as a very fine suspension (a sol ). Also known as Tyndall scattering, it is similar to Rayleigh scattering, in that the intensity of the scattered light is inversely proportional to the fourth power of the wavelength, so blue light is scattered much more strongly than red light.
Haze can be defined as an aerial form of the Tyndall effect therefore unlike other atmospheric effects such as cloud, mist and fog, haze is spectrally selective in accordance to the electromagnetic spectrum: shorter (blue) wavelengths are scattered more, and longer (red/ infrared) wavelengths are scattered less.
Tyndallization. Tyndallization is a process from the nineteenth century for sterilizing substances, usually food, named after its inventor John Tyndall, that can be used to kill heat-resistant endospores. Although now considered dated, it is still occasionally used. [citation needed]
Realisation of Tyndall's bar breaker experiment ready to start. Tyndall's bar breaker is a physical demonstration experiment to demonstrate the forces created by thermal expansion and shrinkage. It was demonstrated 1867 by the Irish scientist John Tyndall in his Christmas lectures for a "juvenile auditory". [1] [2]
Tyndall effect in opalescent glass: it appears blue from the side, but orange light shines through. [7] In a physical sense, some cases of opalescence could be related to a type of dichroism seen in highly dispersed systems with little opacity .
Tyndall National Institute is a European research centre in integrated ICT (Information and Communications Technology) hardware and systems and works with industry and academia to transform research into products. Core research areas include photonics and electronics. The institute is located in Cork, Ireland .
A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid, while others extend the definition to include substances like aerosols and gels.
English: Illustration of John Tyndall's setup for measuring the radiant heat absorption of gases. This illustration dates from 1861 and it is taken from one of John Tyndall's presentations where he describes his setup for measuring the relative radiant-heat absorption of gases and vapors. The galvanometer quantifies the difference in ...
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