Fahrenheit scale of temperature |
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The Fahrenheit scale (°F) was the first widely used temperature scale. It was developed in the early 1700's by G. Daniel Fahrenheit. The zero point of the Fahrenheit scale is attained by mixing equal parts of water, ice, and salt. Fahrenheit set the number 32 as the freezing point of water. He set 96° as the body temperature of his wife. He then made and sold mercury-in-glass thermometers. He measured up to 600°F but most people used his thermometers to keep track of the weather. The Fahrenheit scale is still used in the United States to measure temperatures at or near the Earth's surface. The rest of the world uses the Celsius scale. |
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