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The first thermometers were called thermoscopes, however, in 1724 Gabriel Fahrenheit invented the first mercury or the modern thermometer. The first thermometers were called thermoscopes, however, in 1724 Gabriel Fahrenheit invented the first mercury or the modern thermometer. read more
The mercury-in-glass or mercury thermometer was invented by physicist Daniel Gabriel Fahrenheit in Amsterdam (1714). It consists of a bulb containing mercury attached to a glass tube of narrow diameter; the volume of mercury in the tube is much less than the volume in the bulb. read more
A thermometer measures the changes in temperature while a thermoscope simply shows that there are changes in the temperature. Fahrenheit's invention of the mercury thermometer improved upon Santorio's thermometer with its more accurate measurements and advanced glasswork. read more