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  2. Doppler effect - Wikipedia

    en.wikipedia.org/wiki/Doppler_effect

    [1] [2] [3] The Doppler effect is named after the physicist Christian Doppler, who described the phenomenon in 1842. A common example of Doppler shift is the change of pitch heard when a vehicle sounding a horn approaches and recedes from an observer. Compared to the emitted frequency, the received frequency is higher during the approach ...

  3. Doppler radar - Wikipedia

    en.wikipedia.org/wiki/Doppler_radar

    The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference between the observed frequency and the emitted frequency of a wave for an observer moving relative to the source of the waves. It is commonly heard when a vehicle sounding a siren approaches, passes and recedes from ...

  4. Relativistic Doppler effect - Wikipedia

    en.wikipedia.org/wiki/Relativistic_Doppler_effect

    The relativistic Doppler effect is the change in frequency, wavelength and amplitude [1] of light, caused by the relative motion of the source and the observer (as in the classical Doppler effect, first proposed by Christian Doppler in 1842 [2]), when taking into account effects described by the special theory of relativity.

  5. List of effects - Wikipedia

    en.wikipedia.org/wiki/List_of_effects

    Photoacoustic Doppler effect (Doppler effects) (radar signal processing) (radio frequency propagation) (wave mechanics) Photoelectric effect (Albert Einstein) (electrical phenomena) (foundational quantum physics) Photorefractive effect (nonlinear optics) Photothermal effect (particle physics) (photochemistry) (physics)

  6. Relativistic beaming - Wikipedia

    en.wikipedia.org/wiki/Relativistic_beaming

    Only a single jet is visible in M87. Two jets are visible in 3C 31.. In physics, relativistic beaming (also known as Doppler beaming, Doppler boosting, or the headlight effect) is the process by which relativistic effects modify the apparent luminosity of emitting matter that is moving at speeds close to the speed of light.

  7. Doppler broadening - Wikipedia

    en.wikipedia.org/wiki/Doppler_broadening

    An example of a Doppler broadened line profile. The solid line represents an un-broadened emission profile, and the dashed line represents a broadened emission profile. In atomic physics, Doppler broadening is broadening of spectral lines due to the Doppler effect caused by a distribution of velocities of atoms or molecules.

  8. The Mandela effect: 10 examples that explain what it is and ...

    www.aol.com/lifestyle/mandela-effect-10-examples...

    Here are some Mandela effect examples that have confused me over the years — and many others too. Grab your friends and see which false memories you may share. 1.

  9. Category:Doppler effects - Wikipedia

    en.wikipedia.org/wiki/Category:Doppler_effects

    Relativistic Doppler effect; Rossiter–McLaughlin effect; U. On the coloured light of the binary stars and some other stars of the heavens; V.