Who Invented the Thermometer

Thermometer is a very small device but it is used across the whole planet. Different versions of this device are used to measure air temperature and body temperature.

Thermometer is an important device in the most different areas of life, from meteorology to other disciplines.

People have always been trying to uncover the mystery of weather conditions and to measure the air temperature. However, until the 17th century, those attempts resulted in very little  success.

Who Invented the Thermometer First?

The first thermometers were called thermoscopes. The Italian inventor Santorio was the first to add a numerical scale to this instrument. Galileo Galilei invented the first water thermoscope in 1593. That water thermoscope was able to show the first vibrations of air temperature. Daniel Gabriel Fahrenheit, a German physicist, invented a thermometer with an alcohol charge in 1709. Less than a decade later, the temperature scale was presented – this was the Fahrenheit Scale of temperature. Swedish astronomer Anders Celsius invented a new way of measuring: the temperature of mercury column is divided by using  a 100 degrees scale . It goes from the freezing point (zero degrees) to the boiling point (centigrade) of pure water. In 1742, Celsius presented this scale on the thermometer, and two centuries later it was officially adopted as the international measure.

In the 19th century (1848), William Thomson Lord Kelvin, presented his invention – that was the Kelvin scale of the thermometer. Kelvin scale of the thermometer was able to measure even extreme temperatures, like temperature below freezing and above boiling point. Two generations later, well-known English scientist, Sir Thomas Allbutt discovered the first true medical thermometer, which was used to measure body temperature. This invention led to further progress in identifying and treating all kinds of diseases, especially in their early stages.

During the decades that followed, this device has been refined and modernized. Thermometer with wooden boxes was  replaced with plastic thermometers. The thermometer is now in use worldwide. Thermometer scale for measuring the temperature varies from country to country, although the Celsius temperature scale is widely used. Today, it is almost impossible to imagine the house without at least one thermometer

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