- #1

DaveC426913

Gold Member

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In a curved space, a physicist

*measuring*the ratio of the circumference of a circle to its diameter will come up with a different value, which will be more or less than pi depending on which way his space is curved.

But a mathematician will calculate the ratio of circumference to diameter, and come up with pi, won't he?

So, pi is universal? But our measurement of it depends on our space?