Mobius Strip - Yet Another Surprise
The Mobius strip is a simple object yet full of surprises. Here's one you may not know about..
Take a strip of paper, give it 1 half twist before joining the ends. This is the famous Mobius Strip. Despite how it looks it only has 1 surface. Does a half twist clockwise give the same object as a half twist counter clockwise, or are these two different objects?
But here's the surprise..
Take a strip of paper, but give it 4 half twists before joining the ends. This has 2 surfaces. Now play around with it for a while. At some point it will suddenly "flip" into a double thickness band with 1 half twist. In other words if flips into a double thickness Mobius Strip. One surface has gone, and so have 3 half twists!
Content written and posted by Ken Abbott firstname.lastname@example.org