Doppler effect
noun
: a change in the frequency with which waves (as of sound or light) from a given source reach an observer when the source and the observer are in motion with respect to each other so that the frequency increases or decreases according to the speed at which the distance is decreasing or increasing
Examples of Doppler effect in a Sentence
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The Doppler effect, which detects energy pulses, was discovered by Austrian physicist Christian Doppler and named after him.
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Jacqueline Pinedo, Sacramento Bee, 1 Feb. 2024
The tripods also allowed researchers to build a JANUS receiver, advanced versions of which could minimize decoding errors and account for the Doppler effect.
—IEEE Spectrum, 11 July 2017
Doppler Effect One possibility for this redshift is that the galaxies are physically moving, and that something like the Doppler effect (the shifting in tone that happens to moving sounds) could explain the results.
—Paul M. Sutter, Discover Magazine, 30 Mar. 2023
Researchers use a version of the Doppler effect to gauge the distances of objects.
—Quanta Magazine, 20 Jan. 2023
The turbine's rotating blades can also create a form of interference similar to the Doppler effect, in which sound waves shorten as a moving object approaches the observer.
—Eric Niiler, Wired, 2 Mar. 2022
At Sturgis, there is no Doppler effect — no dwindling, petering waning at all.
—New York Times, 27 Oct. 2021
The telescope also has to cope with another complication: Since the universe is expanding, the galaxies that scientists will study with the Webb telescope are moving away from Earth, and the Doppler effect comes into play.
—Marcia Rieke, The Conversation, 15 Sep. 2021
The scientists cite the Doppler effect, which accounts for how sound distorts as a passing car honks its horn, for example.
—Caroline Delbert, Popular Mechanics, 24 June 2020
Jacqueline Pinedo, Sacramento Bee, 1 Feb. 2024
The tripods also allowed researchers to build a JANUS receiver, advanced versions of which could minimize decoding errors and account for the Doppler effect.
—IEEE Spectrum, 11 July 2017
Doppler Effect One possibility for this redshift is that the galaxies are physically moving, and that something like the Doppler effect (the shifting in tone that happens to moving sounds) could explain the results.
—Paul M. Sutter, Discover Magazine, 30 Mar. 2023
Researchers use a version of the Doppler effect to gauge the distances of objects.
—Quanta Magazine, 20 Jan. 2023
The turbine's rotating blades can also create a form of interference similar to the Doppler effect, in which sound waves shorten as a moving object approaches the observer.
—Eric Niiler, Wired, 2 Mar. 2022
At Sturgis, there is no Doppler effect — no dwindling, petering waning at all.
—New York Times, 27 Oct. 2021
The telescope also has to cope with another complication: Since the universe is expanding, the galaxies that scientists will study with the Webb telescope are moving away from Earth, and the Doppler effect comes into play.
—Marcia Rieke, The Conversation, 15 Sep. 2021
The scientists cite the Doppler effect, which accounts for how sound distorts as a passing car honks its horn, for example.
—Caroline Delbert, Popular Mechanics, 24 June 2020
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'Doppler effect.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Doppler effect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Doppler%20effect. Accessed 18 Apr. 2024.
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