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人们常用“蜗牛的速度”形容很慢,有人曾记录蜗牛全速疾爬的速度为8.5米/小时。即使按这个速度计算,也需要5天才能走完1千米的路程。那么蜗牛的速度到底是多少呢?有位网友做了个小实验,他在河边捉到一只蜗牛,放到岸边石块地上,观察了5分钟左右。在这5分钟时间里,这只蜗牛爬行了大约1厘米,由此计算出蜗牛的时速是0.00012千米,也就是12厘米。蜗牛的腹部生有一道宽而细的横褶,横褶后端较尖,这就是它的“足”。蜗牛
People often use “snail’s speed ” described as very slow, it was recorded snail crawling speed of 8.5 meters / hour at full speed. Even calculated at this speed, it takes 5 days to finish 1 km away. So what is the speed of the snail in the end? A netizen did a small experiment, he caught a snail in the river, put stones on the shore to the ground, observed for about 5 minutes. During this 5-minute period, the snail crawled about 1 centimeter, which calculated that the snail’s speed was 0.00012 kilometers per hour, or 12 centimeters. The snail’s belly is born with a wide and fine horizontal pleats, transverse pleats posterior tip, which is its “foot ”. snails