Last month I wrote about self-titled "Mathemusician" Vi Hart and her wonderful doodle drawing videos that are as entertaining as they are educational-- not an easy thing to pull off.


Her latest video is a smart and informative look at spirals, the fibonacci series, and the places where the series shows up in nature.



Check out the rest of Vi's videos on her YouTube channel.



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Shea Gunther ( @sheagunther ) is a podcaster, writer, and entrepreneur living in Portland, Maine. He hosts the popular podcast "Marijuana Today Daily" and was a founder of Renewable Choice Energy, the country's leading provider of wind credits and Green Options. He plays a lot of ultimate frisbee and loves bad jokes.