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Hello there.

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

Can Fish Count?

Can Fish Count?

Brady Haran
Brian Butterworth, Research
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...

More on numerosity and number cognition with Brian Butterworth - this time discussing research with animals.

A little bit of extra footage on why they do this: http://youtu.be/VuHGLBMZywo
An earlier video with Brian on dyscalculia: http://youtu.be/p_Hqdqe84Uc
And one on numbers and brains: http://youtu.be/n3x8fIdsla4

Phone Buttons

Phone Buttons
Primes are like Weeds (PNT)

Primes are like Weeds (PNT)