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

The Silver Ratio

The Silver Ratio

Brady Haran
Tony Padilla, Golden Ratio

Additional information

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Golden Ratio playlist: http://bit.ly/Golden_Ratio

 

The Problem with 7825

The Problem with 7825
The Golden Ratio (why it is so irrational)

The Golden Ratio (why it is so irrational)