华氏温度怎么来的？
Fahrenheit在他的文章【1】中描述了他的标定方法（这里引用了原文）
\"placing the thermometer in a mixture of sal ammoniac or sea salt, ice, and water a point on the scale will be found which is denoted as zero。 A second point is obtained if the same mixture is used without salt。 Denote this position as 30。 A third point, ...全部
Fahrenheit在他的文章【1】中描述了他的标定方法（这里引用了原文）
\"placing the thermometer in a mixture of sal ammoniac or sea salt, ice, and water a point on the scale will be found which is denoted as zero。
A second point is obtained if the same mixture is used without salt。 Denote this position as 30。
A third point, designated as 96, is obtained if the thermometer is placed in the mouth so as to acquire the heat of a healthy man。
\" 【1】D。 G。 Fahrenheit,Phil。 Trans。 (London) 33, 78, 1724
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他把氯化氨、水、冰的混合物作为最低温度，定为零度，把冰溶解的温度定为32度，把口腔的温度定为96度，后来，人们用这种温度表测出来水的沸点为212度，于是，沸点212度和冰点32度就被用作温度的起止点。收起
