The wheel paradox that stumped Aristotle and Galileo

http://io9.com/the-wheel-paradox-that-stumped-aristotle-and-galileo-1507994415?utm_campaign=socialflow_io9_facebook&utm_source=io9_facebook&utm_medium=socialflow

Head scratching math paradox as an appetizer before dinner this evening.

Enjoy! 

Posted from WordPress for Android via my Samsung smartphone. Please excuse any misspellings. Ciao, Jon

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