Do you want to know who invented the first thermometer?

In life, we often use thermometer, to say the thermometer is one of our industrial, life indispensable instrument, who invented the first human history really thermometer, instrument today with all of you to say. The earliest record of the thermometer was invented in 1593 by the Italian scientist Galileo. His first thermometer is only a glass tube exposure at one end, on the other side with walnut large glass bulb. In the process of using heated the glass bulb first and then put the glass tube into the water. As the change of temperature, the water in the glass tube is mobile, based on what mobile can determine the change of temperature and temperature of high and low. Early this thermometer is relatively rough, of course, have the effect of the heat bilges cold shrink, so this kind of thermometer, is strongly influenced by the outside environment factors such as atmospheric pressure, so the measurement error is bigger. After that, Galileo's students, and other scientists, based on the iterative improvement, such as an inverted glass tube, the liquid on the tube, the glass tube sealing, etc. Leo later French cloth made in 1659 thermometer, he reduced the size of glass bulb, and changing the temperature of material to mercury, the thermometer has now the prototype of the thermometer. Then the Dutch warren hite using alcohol in 1709, in 1714 and measured by mercury as material, creating more accurate thermometer. He looked at the water's boiling temperature, the temperature of the mixed water and ice, salt water and ice when the temperature of the mixture; After repeated experiments and approval, and finally to a certain concentration of the temperature of the salt water freezes at 0 ℉, the temperature of pure water freezes at 32 ℉, a standard atmospheric pressure, the water to boil at a temperature of 212 ℉, with ℉ Fahrenheit temperature, this is Fahrenheit. People many times before the origin of the thermometer is after improvement and research, to today, there are many types of thermometer, for your choice of more and more, the precision is also more and more high, to our life and production provide a lot of convenient.