glühten

Glühten is a German verb that translates to "to glow" or "to be red-hot" in English. It describes a state of intense heat that causes an object to emit light. This phenomenon typically occurs when a material is heated to a high enough temperature, such as a piece of metal in a forge or embers in a fire. The color of the glow can vary depending on the temperature, ranging from dull red at lower temperatures to bright orange, yellow, and even white at extreme heat.

The verb "glühten" is often used in a literal sense to describe physical heat and light emission. For example, one might say that a stove burner is glühend when it is heated up. It can also be used figuratively to describe intense emotions or states. For instance, a person's cheeks might glühten with embarrassment or excitement, or their eyes might glühten with anger. This figurative use implies a similar intensity and outward manifestation, akin to the visible glow of heat.

In scientific contexts, the concept behind "glühten" relates to thermal radiation. When an object is heated, its atoms and molecules vibrate more vigorously, emitting electromagnetic radiation. At sufficiently high temperatures, this radiation falls within the visible spectrum, producing the observed glow. The specific wavelength and intensity of the emitted light are directly related to the object's temperature, a principle utilized in pyrometers for temperature measurement.