1 ene 1751 año - Charles Le Roy's Dew Point Discovery
Descripción:
 Charles Le Roy (1726-1799) found that dew appeared on the outside of glass as it cooled below a certain temperature, which he called the dew point temperature. He also formulated the concept of relative humidity after concluding that a measurement of the air’s humidity had to be relative depending on temperature. 
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1 ene 1751 año
Ahora mismo
 ~ 275 years ago