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What is thermometry?

Thermometry The branch of heat relating to the measurement of the temperature of a body is called thermometry. The thermometer is an instrument used to measure the temperature of a body. The essential requisites of a thermometer are given as under:  1) Construction, 2) Calibration, and 3) Sensitiveness. For the construction of a thermometer, the proper choice of a substance, whose physical property varies uniformly with rising in temperature, is essential. 1) Construction The physical property of a substance plays an important role in the construction of a thermometer. In a mercury thermometer, the principle of expansion of mercury with rising temperature is used. The platinum resistance thermometer is based on the principle of the change in resistance with a change in temperature. The gas thermometer is based on the principle of change in volume or pressure with a change in temperature. 2) Calibration  When a thermometer is constructed, it should be properly calibrated. The standa

What is glass fire?

The Glass Fire is an ongoing wildfire in Northern California. It started on September 27, 2020, at 3:48 AM from an unknown cause. The fire has destroyed a number of structures and forced the evacuation of several thousand residents. As of the evening of September 27, the fire was zero percent contained and growing rapidly. Initially a single fire, the Glass fire merged with two smaller fires during the night of 27 into 28 September.

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