How Pi was nearly changed to 3.2 – Numberphile

The State of Indiana nearly passed a law which would have made Pi equal 3.2 – strange but true. More Pi videos from Numberphile:

This video features Dr James Grime –

The video about squaring circles:

A note to potentially disgruntled viewers about making this video longer to include the subsequent lengthy discussion about squaring circles:

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Videos by Brady Haran

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