X-Nico

12 unusual facts about Doppler effect


2002 AA29

There they are reflected, and because of the Doppler effect the part of the surface that is moving towards the observer (because of the asteroid's rotation) shortens the wavelength of the reflected waves, whilst the other part which is turning away from the observer lengthens the reflected wavelength.

Alpha Arae

The 'n' notation in the suffix indicates that the absorption lines in the star's spectrum appear spread out and nebulous because of the Doppler effect from rapid rotation.

Didier Queloz

Queloz performed an analysis on 51 Pegasi using radial velocity measurements (Doppler effect), and was astonished to find a planet with an orbital period of 4.2 days.

Doppler effect

The Doppler effect (or Doppler shift), named after the Austrian physicist Christian Doppler, who proposed it in 1842 in Prague, is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source.

Geoffrey Perry

Perry and his students (who formed the Kettering Group along with some other volunteers worldwide) continued their satellite tracking work for a number of years, using only inexpensive shortwave radio equipment and painstakingly using the Doppler effect to deduce the satellites' orbits.

HD 86226

Due to the reactions it had when placed under a Doppler test, 13 Magellan Doppler Velocity observations were made of an object found near the star.

HIP 79431 b

During this study, 13 Doppler measurements of the star were done over a 6-month period using the High Resolution Echelle Spectrometer (HIRES).

Johannes Stark

In 1919, he won the Nobel Prize in Physics for his "discovery of the Doppler effect in canal rays and the splitting of spectral lines in electric fields" (the latter is known as the Stark effect).

Kinjiro Okabe

In 1955, his interest turned to medical applications of ultrasound, and he suggested to Shigeo Satomura, one of his graduate students, that he apply Doppler ultrasound techniques to medical diagnosis.

Thank God for Mental Illness

The first seven minutes is the sound of passing cars and an incoherent religious chant performed by Newcombe.

World Driver Championship

The development team was able to optimize the usage of the various processors within the N64 to allow a great draw distance (reducing the need for fog or pop-up), highly detailed texturing and models, Doppler effect MP3 audio, and advanced lighting and fog effects for realistic weather conditions.

Zeta potential

This velocity is measured using the technique of the Laser Doppler Anemometer.


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.

History of special relativity

A possible solution to the problem was shown by Woldemar Voigt (1887), who investigated the Doppler effect for waves propagating in an incompressible elastic medium and deduced transformation relations that left the Wave equation in free space unchanged, and explained the negative result of the Michelson-Morley Experiment.