词汇 | celsius scale |
词源 | Celsius scale. The centigrade thermometer is often called the Celsius thermometer in honor of the eminent Swedish astrono- mer who invented the Celsius scale. Anders Celsius (1701–44) first suggested his improvement of the Fahrenheit scale before the Swedish Academy of Sciences in 1742, proposing the more obvious gradation between 0 and 100. Today the mercury ther- mometer patterned on this scale is widely used in Europe for meteorological and all other temperatures. Celsius also found- ed the observatory at Uppsala, where he was a professor, and made and collected many observations of the aurora borealis. Boiling water measures 212 degrees on the Fahrenheit scale and 100 degrees on the Celsius or centigrade scale; water freezes at 0 degrees centigrade and 32 degrees Fahrenheit. See f; old philadelphia lady. |
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