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John Tyndall was a prominent 19th century Irish physicist
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The Tyndall effect is a phenomenon where light gets scattered by tiny particles in a liquid or gas, making the light beam visible. Imagine a dusty room with sunlight streaming in – you can see the light because dust particles in the air scatter the light. This happens because the particles are much smaller than the wavelength of visible light. Shorter wavelengths, like blue and violet, are scattered more than longer wavelengths, creating the blue sky during the day and red-orange sunsets.
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His pioneering research in atmospheric science led to an understanding of the greenhouse effect, vital for climate science. He investigated infrared radiation absorption by gases like water vapor and carbon dioxide. An accomplished mountaineer, he advanced glaciological understanding through Alpine expeditions. His broader impact lies in optics, radiation, mountaineering, and science communication, leaving an enduring mark on various scientific disciplines.
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https://www.youtube.com/watch?v=mNp-uM3fvR8
https://www.britannica.com/science/Tyndall-effect
https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Physical_Properties_of_Matter/Solutions_and_Mixtures/Colloid/Tyndall_Effect
https://victorianweb.org/science/tyndall.htm
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