Brady and Keith investigate the early days of sunglasses... As well as a mystery object donated by an Objectivity viewer! More links below ↓↓↓
Objectivity on Patreon: / objectivity
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Films by James Hennessy and Brady Haran
Royal Society website: http://bit.ly/Royal_Society
The Royal Society's own YouTube channel: / royalsociety
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Twitter: / objectivity_vid
Patron thank you page: http://www.bradyharanblog.com/objecti...
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Some keywords: Sunglasses, compensation, industrial, diseases, injury, cataracts, glass workers, Lord Rayleigh, John Strutt, William Crookes, radiometers, Nuttall & Co's Glass Works, ultra-violet, women, crystalline lens, Clare Harris, viewer donation, Crookes' anti-glare lenses,