Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3] | Vi Hart | 均一教育平台

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Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3]

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Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3] : Part 2: http://youtu.be/lOIP_Z_-0Hs Part 3: http://youtu.be/14-NdQwKz9w Re: Pineapple under the Sea: http://youtu.be/gBxeju8dMho