Dopplereffektusból

Dopplereffektusból is a Hungarian coinage that can be understood as a compound noun meaning “from the Doppler effect.” In practice, the term is not a standard technical label in physics, but it may be used in Hungarian texts to indicate results, methods, or interpretations that are derived from or based on the Doppler effect. The word combines Doppler effect, Dopplereffektus, with the suffix -ból, indicating origin or source.

The Doppler effect refers to a change in the observed frequency or wavelength of waves caused by the relative motion between the source and the observer. When the source and observer move toward each other, the observed frequency increases; when they move apart, it decreases. For waves traveling in a medium, the classical relation can be written as f' = f (v + vo) / (v − vs), where f is the emitted frequency, f' the observed frequency, v the wave speed in the medium, vo the observer’s speed toward the source, and vs the source’s speed away from the observer. In many practical contexts, the effect is described simply as a shift in wavelength or frequency that encodes relative motion.

Applications of Doppler-based analysis are widespread. In astronomy, Doppler shifts reveal stellar and galactic motions; in meteorology, Doppler radar measures wind speeds; in medicine, Doppler ultrasound assesses blood flow. If used as a label, Dopplereffektusból would typically denote a result, technique, or interpretation that is derived from or explained by the Doppler effect, rather than a distinct, widely recognized field.