Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Re: Problems with Infinity?
Posted:
Feb 24, 2013 11:27 PM


netzweltler <reinhard_fischer@arcor.de> wrote: >Why do you think there are different infinities in geometry? The >moebius strip is simply an infinite loop, isn't it?
Well, a nonorientable one, and IF you consider it as a 2D manifold (if I'm remembering things right from long ago) it's unbounded above and below in the same manner a horizontal line is to left and right. We usually just look at a section of that and call it a "Mobius strip", and give it top and bottom edges. But I don't think that's what Don was thinking of.
Dave  \/David DeLaney posting from dbd@vic.com "It's not the pot that grows the flower It's not the clock that slows the hour The definition's plain for anyone to see Love is all it takes to make a family"  R&P. VISUALIZE HAPPYNET VRbeable<BLINK> http://www.vic.com/~dbd/  net.legends FAQ & Magic / I WUV you in all CAPS! K.



