Dr. Anna Mani, an esteemed Indian meteorologist and physicist, was known as the “Weather Woman of India.” She significantly contributed to meteorology and played a vital role in developing weather instruments and forecasting techniques in India.
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Celsius is named after Anders Celsius, who devised the scale based on the freezing and boiling points of water. Fahrenheit honors Daniel Gabriel Fahrenheit, while Kelvin is named after Lord Kelvin, who introduced absolute temperature.
During the COVID-19 pandemic, infrared thermometers were used to measure a person’s temperature from a distance. They detect heat radiating from the body and provide quick, non-contact temperature readings.
Specific heat capacity is the amount of heat required to raise the temperature of 1 kilogram of a substance by 1°C. It varies for different materials.
Thermal expansion is the increase in the volume of a substance when its temperature rises. This occurs because particles move faster and spread apart as they gain kinetic energy.