人类有某种生理时钟。原来植物和动物也一样。瑞典植物学家卡尔·林奈于1751年产生了一个奇异的想法,要用花来做时钟。牵牛花在上午10点左右绽开其喇叭状的花瓣,睡莲在11点开放,如此类推,直到夜来香和月光花的盛开。这些花朵有序的开放可以用来指示时间。在当时,这是一个异想天 Humans have some kind of physiological clock. The same is true for plants and animals. Swedish botanist Carl Linnet created a strange idea in 1751 that spent the clock on flowers. Morning glory blooms its trumpet-shaped petals at around 10 am, and the water lilies are open at 11 am and so on until the lavender and moonlight bloom in full bloom. The orderly opening of these flowers can be used to indicate the time. At the time, it was a fantasy