“失之毫厘，谬以千里”，从这句俗语中我们可以看出，古人认为毫、厘是最小的长度单位。随着人类对宏观世界认识的不断扩大，对微观世界的认识也在不断深入，小单位越来越小，大单位越来越大。物理学中最小的长度单位是阿米，1阿米相当于10-16厘米。世界上最小的面积单位是“s “From the point of view, we can’t miss the point.” From this saying, we can see that the ancients think that millimeters and centimeters are the smallest unit of length. With the continuous expansion of human understanding of the macro-world, the understanding of the micro-world is also deepening, small units are getting smaller and smaller, and large units are getting bigger and bigger. The smallest unit of length in physics is Ami, and 1 Ami is equivalent to 10-16 cm. The smallest area unit in the world is "s