Doppler effect
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Due to the Doppler effect, a fire truck's siren gets higher-pitched as it travels closer and sounds lower-pitched as it drives farther away.
From Science Daily • May 23, 2024
Their speeds would be carefully calibrated to create different layers of the Doppler effect, or the bending in a note that we perceive when sound passes us by.
From New York Times • Jan. 17, 2024
Sometimes I go to sleep to the bizarre Doppler effect of planes that sound as if they’re about to crash into my house.
From Seattle Times • Jun. 9, 2023
They emit light at specific wavelengths, which the gases’ swirling motion smears into “broad emission lines” through the Doppler effect.
From Science Magazine • Apr. 25, 2023
The most obvious explanation of the red shift was in terms of the Doppler effect: the galaxies were receding from us; the more distant the galaxy the greater its speed of recession.
From "Cosmos" by Carl Sagan
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
