A thermometer works by detecting changes in heat. Heat causes substances to expand, change electrical properties, or emit invisible radiation—all of which can be measured and converted into a ...

The thermometer is at least 50 feet from the nearest paved surface. Suggestion - use a radiation shield for your thermometer. This way, your weather station can be placed in direct sunlight ...

Radiation is the transfer of heat energy from ... fixed distance from each side of a Leslie's cube using four identical thermometers. Heat the Leslie's cube by filling it with boiling water.

William Herschel inadvertently discovered infrared radiation. He blackened the end of a sensitive mercury thermometer and utilized it in a measuring system to examine the heating properties of unique ...

A thermometer placed in the liquid indicates ... and intended to obtain the measure of the intensity of the solar radiation at a given moment. A hollow sphere of very thin copper is caused to ...