återemitterar

Återemitterar is a Swedish verb that translates to "re-emits" or "re-broadcasts" in English. It describes the action of sending out something that has been received or absorbed. This concept can be applied in various contexts, from physics to communication.

In physics, "återemitterar" is often used when discussing electromagnetic radiation. For example, an atom or molecule might absorb a photon of a specific wavelength and then subsequently emit a photon of the same or a different wavelength. This process is known as fluorescence or phosphorescence, and the substance is said to "återemitterar" light. Similarly, certain materials can absorb heat energy and then "återemitterar" it as infrared radiation.

In telecommunications and broadcasting, "återemitterar" refers to the act of receiving a signal and then transmitting it again, often with amplification or at a different frequency. A repeater station, for instance, receives a weak radio signal, boosts its strength, and then "återemitterar" it to extend its range. This is crucial for maintaining signal integrity over long distances in systems like television broadcasting, mobile networks, and wireless internet. The term can also be used more generally to describe any entity that passes on information it has received.