01:30Learning
Can you see the grey box? Sensory adaptation explained by Kit Yates #sciencedemo #optical #sensory
The Royal Institution
Originally published at - http://learningenglish.voanews.com/media/video/lets-learn-english-lesson-9-is-it-cold/3265074.html
Published 2016-04-20 · Watch on YouTube ↗
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