Thermometer is a device that is you to measure temperature. There are mostly two elements of thermometer the temperature sensor (e.g a bulb in the mercury thermometer and also have tge scale that measure the temperature.
Types of thermometer
Bi metal mechanical thermometer
Mercury in galas thermometer
Mercury thermometer was invented by the Gabriel Fahrenheit.
There is also a type of reading thermometer. It may use on the laboratory for reading many chemicals and to test the chemicals solutions PH..
Its tube end with the bulb at one end and sealed with other end.
The thermometers like medical thermometer is also use for the doctors that is use to test the temperature mostly by the patient.
The scale starts form 32 degree and divided into 180 equal devision.
There's also a little arrow of 98.degree on clinical thermometer
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