tyndall : Idioms & Phrases
Index
john tyndall
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noun British physicist (born in Ireland) remembered for his experiments on the transparency of gases and the absorption of radiant heat by gases and the transmission of sound through the atmosphere; he was the first person to explain why the daylight sky is blue (1820-1893)
Tyndall.
WordNet
tyndall effect
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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