How do glasses help us see? - Andrew Bastawrous and Clare Gilbert
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View full lesson: http://ed.ted.com/lessons/how-do-glasses-help-us-see-andrew-bastawrous-and-clare-gilbert<br />
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Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction — the ability of a transparent medium, like glass, water, or the eye, to change the direction of light passing through it. <br />
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Lesson by Andrew Bastawrous and Clare Gilbert, animation by Andrew Foerster.
<br />
Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction — the ability of a transparent medium, like glass, water, or the eye, to change the direction of light passing through it. <br />
<br />
Lesson by Andrew Bastawrous and Clare Gilbert, animation by Andrew Foerster.
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