History of Galileo thermometers

Galileo thermometers are big glass tubes which suspend a number of multi colored balls. The Galileo thermometers are very useful in measuring the atmospheric temperature. The balls that are suspended are not only multi colored but also represent the air temperature with the numbers that they are tagged with. Sister name of Galileo thermometers is Galilean thermometers.

This famous thermometer was invented by the famous scientist named Galileo Galilei. He had invented it long back and the main concept of reading the temperature and constructing the thermometers is just as same as the old thermometers. The position of these balls in the thermometers change according to rise and fall in the air temperature. The thermometer was invented in the seventeenth century. The principle that is followed in the Galileo thermometers is the scientific principle of buoyancy. The theory of buoyancy can be defined as the theory which defines the ratio of the weight that float over a liquid to the weight of the liquid on which they float. If the ratio of the object is more than the liquid then the object will sink and if the weight of the liquid is more than the object that means the object will float. The degree of temperatures that are displayed with the help of balls allows the readers to know the present air temperature. The procedure is very simple. As we know that the balls are suspended in the tube and they can also move freely in the tube and settle down if the need be. So we see that the balls have settled at the bottom that means the air temperature is hot and if we find that the balls are floating at the top that means the temperature is comparatively cool.