How Thermometer is Made

How Thermometer is Made for 2022

Let’s go know about How Thermometer is Made. The operating principle of a thermometer is sort of simple. A known measure of liquid (mercury, alcohol, or a hydrocarbon-based fluid) is vacuum-sealed during a glass tube. The liquid expands or contracts when air is heated or cooled. The bulb reservoir is made by heating one end of the glass tube and pinching …

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