Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Doppler_effect> ?p ?o }
- Doppler_effect abstract "The Doppler effect (or Doppler shift) is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source. It is named after the Austrian physicist Christian Doppler, who proposed it in 1842 in Prague. It is commonly heard when a vehicle sounding a siren or horn approaches, passes, and recedes from an observer. Compared to the emitted frequency, the received frequency is higher during the approach, identical at the instant of passing by, and lower during the recession.When the source of the waves is moving toward the observer, each successive wave crest is emitted from a position closer to the observer than the previous wave. Therefore, each wave takes slightly less time to reach the observer than the previous wave. Hence, the time between the arrival of successive wave crests at the observer is reduced, causing an increase in the frequency. While they are travelling, the distance between successive wave fronts is reduced, so the waves \"bunch together\". Conversely, if the source of waves is moving away from the observer, each wave is emitted from a position farther from the observer than the previous wave, so the arrival time between successive waves is increased, reducing the frequency. The distance between successive wave fronts is then increased, so the waves \"spread out\".For waves that propagate in a medium, such as sound waves, the velocity of the observer and of the source are relative to the medium in which the waves are transmitted. The total Doppler effect may therefore result from motion of the source, motion of the observer, or motion of the medium. Each of these effects is analyzed separately. For waves which do not require a medium, such as light or gravity in general relativity, only the relative difference in velocity between the observer and the source needs to be considered.".
- Doppler_effect soundRecording Doppler_effect__1.
- Doppler_effect thumbnail Doppler_effect_diagrammatic.svg?width=300.
- Doppler_effect wikiPageExternalLink doppler.html.
- Doppler_effect wikiPageExternalLink 2-04.htm.
- Doppler_effect wikiPageExternalLink dopplershift.html.
- Doppler_effect wikiPageExternalLink CL0113709540_1d645df0e.
- Doppler_effect wikiPageExternalLink EM_Propagation.html.
- Doppler_effect wikiPageExternalLink WaveDancer.html.
- Doppler_effect wikiPageExternalLink DopplerEffect.html.
- Doppler_effect wikiPageExternalLink 12532039.
- Doppler_effect wikiPageExternalLink applets_New.html.
- Doppler_effect wikiPageExternalLink ex-doppler.html.
- Doppler_effect wikiPageExternalLink doppler.html.
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- Doppler_effect wikiPageLength "28748".
- Doppler_effect wikiPageOutDegree "95".
- Doppler_effect wikiPageRevisionID "707463571".
- Doppler_effect wikiPageWikiLink Acoustic_Doppler_velocimetry.
- Doppler_effect wikiPageWikiLink Anatomical_terms_of_location.
- Doppler_effect wikiPageWikiLink Astronomy.
- Doppler_effect wikiPageWikiLink Austria.
- Doppler_effect wikiPageWikiLink BD-15°4041.
- Doppler_effect wikiPageWikiLink Binary_star.
- Doppler_effect wikiPageWikiLink Blueshift.
- Doppler_effect wikiPageWikiLink Bristol.
- Doppler_effect wikiPageWikiLink C._H._D._Buys_Ballot.
- Doppler_effect wikiPageWikiLink Cardiac_output.
- Doppler_effect wikiPageWikiLink Category:Doppler_effects.
- Doppler_effect wikiPageWikiLink Category:Radar_signal_processing.
- Doppler_effect wikiPageWikiLink Category:Radio_frequency_propagation.
- Doppler_effect wikiPageWikiLink Category:Wave_mechanics.
- Doppler_effect wikiPageWikiLink Chemical_element.
- Doppler_effect wikiPageWikiLink Christian_Doppler.
- Doppler_effect wikiPageWikiLink Contrast-enhanced_ultrasound.
- Doppler_effect wikiPageWikiLink Crest_(physics).
- Doppler_effect wikiPageWikiLink Differential_Doppler_effect.
- Doppler_effect wikiPageWikiLink Doppler_cooling.
- Doppler_effect wikiPageWikiLink Doppler_spectroscopy.
- Doppler_effect wikiPageWikiLink Dopplergraph.
- Doppler_effect wikiPageWikiLink Echocardiography.
- Doppler_effect wikiPageWikiLink Electromagnetic_radiation.
- Doppler_effect wikiPageWikiLink Electron.
- Doppler_effect wikiPageWikiLink Embryo.
- Doppler_effect wikiPageWikiLink Emergency_vehicle.
- Doppler_effect wikiPageWikiLink Fading.
- Doppler_effect wikiPageWikiLink Fizeau_experiment.
- Doppler_effect wikiPageWikiLink Frequency.
- Doppler_effect wikiPageWikiLink Galaxy.
- Doppler_effect wikiPageWikiLink Gene_expression.
- Doppler_effect wikiPageWikiLink General_relativity.
- Doppler_effect wikiPageWikiLink Gravity.
- Doppler_effect wikiPageWikiLink Hammond_organ.
- Doppler_effect wikiPageWikiLink Hippolyte_Fizeau.
- Doppler_effect wikiPageWikiLink John_Dobson_(amateur_astronomer).
- Doppler_effect wikiPageWikiLink John_Scott_Russell.
- Doppler_effect wikiPageWikiLink Laser_Doppler_velocimetry.
- Doppler_effect wikiPageWikiLink Laser_Doppler_vibrometer.
- Doppler_effect wikiPageWikiLink Leslie_speaker.
- Doppler_effect wikiPageWikiLink List_of_nearest_stars_and_brown_dwarfs.
- Doppler_effect wikiPageWikiLink Medical_ultrasound.
- Doppler_effect wikiPageWikiLink Mesoderm.
- Doppler_effect wikiPageWikiLink Monotonic_function.
- Doppler_effect wikiPageWikiLink National_Center_for_Supercomputing_Applications.
- Doppler_effect wikiPageWikiLink Neurology.
- Doppler_effect wikiPageWikiLink Observer_(physics).
- Doppler_effect wikiPageWikiLink Obstetric_ultrasonography.
- Doppler_effect wikiPageWikiLink Ogg.
- Doppler_effect wikiPageWikiLink Photoacoustic_Doppler_effect.
- Doppler_effect wikiPageWikiLink Photonic_crystal.
- Doppler_effect wikiPageWikiLink Pitch_(music).
- Doppler_effect wikiPageWikiLink Prague.
- Doppler_effect wikiPageWikiLink Proximity_fuze.
- Doppler_effect wikiPageWikiLink Radar.
- Doppler_effect wikiPageWikiLink Radial_velocity.
- Doppler_effect wikiPageWikiLink Rayleigh_fading.
- Doppler_effect wikiPageWikiLink Redshift.
- Doppler_effect wikiPageWikiLink Relative_velocity.
- Doppler_effect wikiPageWikiLink Relativistic_Doppler_effect.
- Doppler_effect wikiPageWikiLink Scratch_(programming_language).
- Doppler_effect wikiPageWikiLink Segmentation_(biology).
- Doppler_effect wikiPageWikiLink Siren_(alarm).
- Doppler_effect wikiPageWikiLink Somite.
- Doppler_effect wikiPageWikiLink Sound.
- Doppler_effect wikiPageWikiLink Spectral_line.
- Doppler_effect wikiPageWikiLink Spectroscopy.
- Doppler_effect wikiPageWikiLink Star.
- Doppler_effect wikiPageWikiLink Sun.
- Doppler_effect wikiPageWikiLink Superprism.
- Doppler_effect wikiPageWikiLink Swinburne_University_of_Technology.
- Doppler_effect wikiPageWikiLink Ultrasound.
- Doppler_effect wikiPageWikiLink United_Kingdom.
- Doppler_effect wikiPageWikiLink University_of_Shanghai_for_Science_and_Technology.
- Doppler_effect wikiPageWikiLink Velocity.
- Doppler_effect wikiPageWikiLink Vertebra.
- Doppler_effect wikiPageWikiLink Vertebrate.
- Doppler_effect wikiPageWikiLink Victor_Veselago.
- Doppler_effect wikiPageWikiLink Wave.
- Doppler_effect wikiPageWikiLink Woolley_9722.
- Doppler_effect wikiPageWikiLink Zebrafish.