Hank introduces us to the most beautiful numbers in nature - the Fibonacci sequence.

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Vi Hart's Fibonacci series starts here:    • Doodling in Math: Spirals, Fibonacci,...  

References:
http://mathdude.quickanddirtytips.com...
http://mathdude.quickanddirtytips.com...
http://www.maths.surrey.ac.uk/hosted-...
http://thesavoia.com/2012/06/04/the-g...