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Doppler

[dop-ler]
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noun
  1. Christian Johann,1803–53, Austrian physicist: discovered the Doppler effect.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for doppler

Contemporary Examples

Historical Examples

  • And I noticed that the waves of sound were under a slight Doppler effect.

  • Recent spectroscopic observations of the nebul applying the principle of Doppler have revealed high velocities of rotation.

    Astronomy

    David Todd

  • Neither does it cause any change of colour or Doppler effect; that is, no shift of lines in spectrum.

    The Ether of Space

    Oliver Lodge

  • Angle, strength and Doppler movement were computed to find course and distance.

    Planet of the Damned

    Harry Harrison

  • The method of detecting binary stars by means of the spectroscope is an application of Doppler's principle.

    Astronomy of To-day

    Cecil G. Dolmage


Word Origin and History for doppler

Doppler

1871, in reference to Christian Doppler (1803-1853), Austrian scientist, who in 1842 explained the effect of relative motion on waves (originally to explain color changes in binary stars); proved by musicians performing on a moving train. Doppler shift is the change of frequency resulting from the Doppler effect.

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Online Etymology Dictionary, © 2010 Douglas Harper

doppler in Science

Doppler

[dŏplər]
  1. Austrian physicist and astronomer who in 1842 explained the effect, now named for him, of variations in the frequency of waves as a result of the relative motion of the wave source with respect to the observer.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.