
Dave Richeson
@divbyzero
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Mathematician. Curley Chair in Liberal Arts at Dickinson College. Author of Tales of Impossibility and Euler's Gem. Now: https://t.co/cefdX8CG6u
Carlisle, PA
Joined August 2008
RT @hschhaya: (Inspired by @divbyzero). In an effort to get something other than politics into your feed, a fun fact about ‘49’. The sum of….
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I decided to make a little video using @geogebra illustrating the relative sizes of the planets, the orbits of the planets, and an assortment of stars (including WOH G64, the largest star of known radius—1540 times the radius of our sun!).
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