Thermal Physics

Temperature and Its Measurement

How are thermographs used?

Thermographs, which detect the amount of infrared radiation emanating from objects or regions, use colors to display the temperature on an image. Typically, red indicates the warmest temperatures, while blue indicates cooler temperatures. Thermographs are used throughout science, but are well noted for their use in detecting humans in wilderness areas, identifying areas of homes that need more insulation, and in measuring the temperature over regions of Earth.


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