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L' Effet Pommier 3
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L'Effet Pommier - Volume 03.iso
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Mobius Strip (16,4)
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1995-09-30
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Mobius Strip
This is a mobius strip with a couple of special attributes.
It has been stretched so that
1) Its single edge forms a perfect circle.
2) Its surface lies on the surface of a hypersphere.
Once you've built one of these, you easily can glue the edges of two of them to make a Klein Bottle. (See the Klein Bottle files.)
This particular strip was made from a grid that was 16 squares long and 4 squares wide.
It was mapped onto a hypersphere with the formula:
Given a rectangular patch [a,b] where 0┬░ΓëñaΓëñ360┬░, and 0┬░ΓëñbΓëñ90┬░, map [a,b] onto [x,y,z,t] with:
x = cos(a) cos(b)
y = sin(a) cos(b)
z = cos(2a) sin(b)
t = sin(2a) sin(b)
The edge of the Mobius strip is where b=0, in the xy plane.