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

Magic Square Party Trick

Magic Square Party Trick

Brady Haran
Matt Parker, Magic Squares
Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers.Check out Brilliant (get 20% off their premium service): https://brillian...

Matt Parker shows off his Magic Square party trick (unlike magicians, mathematicians often reveal their secrets).

More Magic Square videos: http://bit.ly/MagicSquareVideos

Rubik's Cube videos: http://bit.ly/rubiksvids

More Matt on Numberphile: http://bit.ly/Matt_Videos

A little extra bit for this video: https://youtu.be/zhB2AUNcsx0

Parker Square: https://youtu.be/aOT_bG-vWyg

Parker Square T-Shirt: http://bit.ly/ParkerSquareTshirt

Perplexing Paperclips

Perplexing Paperclips
The Parker Square

The Parker Square