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Has Pi the same ratio all around the univers? If not what we will see?

2007-02-11 04:02:54 · 3 answers · asked by Jesús V 3 in Science & Mathematics Mathematics

3 answers

Well, in the euclidean space pi is a constant. But you can have one idea of what would happens with the ratio of the circle length to its radious in a geometry over the sphere. Suppose you are living on a sphere (in fact you are, on Earth) and you are a flat (like a shadow) being, not knowing about the third dimension. For you, the sphere surface is your world. If you trace a circle and compare its lenght with that of its radious, you will find a figure other than pi. Your are in a not euclidean geometry. Your pi will be different that the ordinary euclidean pi.

Take a look at

http://en.wikipedia.org/wiki/Spherical_geometry

Maybe that answers your question.

2007-02-11 04:24:01 · answer #1 · answered by Jano 5 · 0 0

I think you are a bit mixed up about pi. It is simply a constant. It is also the ratio of the circumference of any circle to the diameter of the circle. Approximation is 3.141592638464... I saw a savant boy on TV who recited this on correctly for about 51/2 hours.
You should look this up on the net.

2007-02-11 12:23:47 · answer #2 · answered by rwbblb46 4 · 0 0

Pi is a set value. Changing makes it something other than Pi. (Cake maybe? :D)

2007-02-11 12:11:02 · answer #3 · answered by Uther Aurelianus 6 · 0 0

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