Saturday 2 January 2016

Thermometer

                                                       
                                                   Thermometer
The Thermometer is an instrument used for measuring the thermometer of the air or a person’s body. This instrument tells you how hot or cold the air or your body is.

                                                  Santorio Santrio
In 1612, Italian scientist Santorio Santrio invented the fist theroscope with a scale. Perhaps, It was the first clinical thermometer that could be put in the mouth of a patient. However, The thermometers designed by Galileo and santario could not become popular.
                                       
                                                     
Ferdinand

In 1654, Italian duke Ferdinand designed a thermometer with a closes glass tube containg a liquid. He used alcohol as a liquid. His thermometer was also not so effective. It did not have a scale either.

                                                          
Thomas Clifford Allbutt

In 1866, English scientist Thomas Clifford Allbutt designes a clinical thermometer which measure the temperature of a patient in five minutes. In 1999, De. Francesco Pompeo designed the world’s first modern thermometer which measure the body temperatire in just two seconds by scanning the forehead.

                                                           
Fahrenheit Scale 

In 1714, German scientist Daniel Gabriel Faharenheit designed a thermometer in which he used mercury instead of alcohol. In his scale, The freezing pint of water was kept at 32`F and boiling point at 212`F. In this way, The points between the boiling and freezing point of water were divided into 180 degrees, In a Frhrenheit scale, a degree is called Fahrenheit degree.

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