$20 QUESTION -- Category: Inventive Dudes
When he developed his temperature scale in 1724, what did Gabriel Daniel Fahrenheit use as a fixed reference point?
The boiling point of water.
The melting point of ice.
The temperature of the human body.
Sorry! The correct answer is 3. The temperature of the human body. (Since water boils at lower temperatures at higher altitudes, Fahrenheit figured that the temperature of the human body was a fixed reference point that anyone, anywhere, could easily verify. He set body temperature at 96 degrees, which was an easily divisible number. It also wasn't very accurate, but -- hey! It happened almost 275 years ago).
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