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Hello there.

This is Numberphile. We mainly post videos about mathematics and just numbers in general.

Card Flipping Proof

Card Flipping Proof

Additional information

Zandra Vinegar demonstrates a card game and how she likes to visualise a proof associated with it (involving a hedgehog).

More videos involving cards: http://bit.ly/Cards_Shuffling

Buy a deck of Numberphile playing cards: http://bit.ly/NumberphileCards

Zandra is director of mathematics at Brilliant.

PODCAST: The Math Storyteller with Simon Singh

PODCAST: The Math Storyteller with Simon Singh

The Trapped Knight

The Trapped Knight