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Hello there.

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

8848

8848

Brady - who makes these videos - is back from a holiday to Mt Everest. So here's a video about the height of the mountain before we return to our usual stuff (we promise!).

Some of Brady's photos can be seen at http://periodicvideos.blogspot.co.uk/2012/05/some-everest-photos.html

Sexy Primes

Sexy Primes

666

666