Blood-spurting martyrs, biblical parables, ascendant doves most church windows feature the same preachy images that have awed parishioners for centuries. But a new stained-glass window in Germany's Cologne Cathedral, to be completed in August, evokes technology and science, not religion and the divine. Contemporary German artist Gerhard Richter designed the 65-foot-tall work to replace the original, destroyed by bombs in World War II. As a starting point, he used his own 1974 painting 4096 Colors. To create that piece a 64-by-64 grid of squares Richter devised a mathematical formula to systematically mix permutations of the three primary colors and gray. Funny coincidence: 4,096 is also the number of "Web-smart" colors that display consistently on older computer screens, a limitation some Web designers still take into account(more from wired)
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