美国佬祸害世界最大的就是英制度量,记得动画片the simpsons有一只,Simpson就唱,we ruin the world by inches
Sic~semper~tyrannis 发表评论于
华氏温度和摄氏温度重合在零下40度。两者换算公式是 F = C * 9/5 + 32。若 F 和 C 都等于 -40,则等式成立。
实际上,华氏比摄氏的有点还有几个。
1.华氏1度相当于摄氏5/9度,所以若只用整数,可以比摄氏表达的温度更精确。这个有点可比厘米较英寸的优点。
2.水的沸点和冰点(摄氏的100度和0度)并非不变的常量。珠穆朗玛峰上,水70摄氏度就沸腾了。潜艇螺旋桨叶片上,由于叶片旋转造成的低压,常温下,水就沸腾了(这是潜艇噪音的最大来源)。可是华氏100度,最初是人的体温(当然有些误差)。人的体温,只要还活着,基本上是恒定的,无论是高空还是海底。即使发烧,也差不了几度。这就比水的沸点,稳定多了。
3.再有就是楼主说的感受。100华氏度,对人来说很热。0华氏度,对人来说很冷。用起来很方便。
It's all arbitrary things, metrics or English measurements. The only difference is whether most people accept it. There's nothing wrong with using Fahrenheit instead of Celsius if most people like it or are used to it. The majority of Americans are not used to the metric system, sudden conversion will cause confusion in many aspects. So yeah, without consensus from the majority population, forget about it. Fahrenheit is just fine for me, after 20+ years of living with it.