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公元1858年,德国数学家莫比乌斯和约翰·李斯丁发现,把一根纸条扭转180°后,两头再粘接起来做成的纸带圈,具有魔术般的性质。普通纸带具有两个面,一个正面,一个反面,两个面可以涂成不同的颜色;而这样的纸带只有一个面,倘若一只小虫可以爬遍整个曲面而不必跨过它的边缘。这种纸带被称为“莫比乌斯环带”。这个发现为世人揭示出一个最广泛的真理,“莫比乌斯带”其实已经不是一个单纯的面了,而是一个体,任何体都只有一个面,但
In 1858, German mathematicians Mobius and John Reithing found that the magic of a tape loop made by rewinding a strip of paper 180 ° after it was turned 180 °. An ordinary paper tape has two sides, a front side, a back side, two sides can be painted in different colors; and such a tape has only one side, provided that a bug crawls through the entire surface without having to cross its edge . This tape is called “Mobius Ring Belt”. This discovery reveals one of the most widespread truths for the world. “Mobius Band” is actually not a simple one, but an individual, with only one face in any body. However,