A Mobius Strip Looks Like It Has Two Sides, But It Only Has One
The German mathematician August Möbius, born November 17, 1790, discovered the Möbius strip in 1858. A mobius strip is a two-dimensional surface with only one side. With the strip, you can start at one point and make a path that passes through a point on the opposite side of the surface while staying on the same plane. In other words, it's a nonorientable surface, which means that if you traveled over it you'd return to your starting place mirror-reversed. The Möbius crater, on the far side of the moon, is named after him. Learn more about mobius strips below.
How To Make A Mobius Bridge
There are a number of possible designs.
Key Facts In This Video
If a person was walking on a mobius strip, they could walk continuously forever. (0:04)
There are many architectural possibilities with mobius bands. (3:53)
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A Lifesize Mobius Strip Does The Wave
This is oddly mesmerizing.
from New Scientist
How To Crochet A Mobius Scarf
Because physics and crafts make a wonderful pair.