The Luttrell Psalter is a Gothic manuscript from the countryside of medieval England.
“The Luttrell Psalter, now numbered Additional MS 42130 in the collections of the British Library, is made up of 309 leaves of sturdy, well-prepared vellum.”…
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Have you ever wondered what color is? In this first installment of a series on light, Colm Kelleher describes the physics behind colors-- why the colors we see are related…
View full lesson: http://ed.ted.com/lessons/how-we-see-color-colm-kelleher
There are three types of color receptors in your eye: red, green and blue. But how do we see the amazing kaleidoscope of other colors that make up our world? Colm Kelleher…