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Chaos & Complex Systems Seminar

Color: Physics and perception

Date: Tuesday, January 21st

Time: 12:05 pm - 1:00 pm

Place: 4274 Chamberlin (refreshments will be served)

Speaker: Pupa Gilbert, UW Department of Physics

Abstract: Unless we are colorblind or are in the dark, as soon as we look at any object, we know what color the object is. Simple, isn’t it? No, not really. The color we see is rarely just determined by the physical color, that is, the wavelength of visible light associated with that color. Other factors, such as the illuminating light, or the brightness surrounding a certain color, affect our perception of that color. Most striking, and useful, is understanding how the retina and the brain work together to interpret the color we see, and how they can be fooled by additive color mixing, which makes it possible to have color screens and displays. I will show the physical origin of all these phenomena and give live demos as I explain how they work. Bring your own eyes!

For more information: (1) watch TED talk: “Color: Physics and Perception” and (2) read book: PUPA Gilbert and W Haeberli “Physics in the Arts”, ISBN 9780123918789.

Host: Clint Sprott

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