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.
Researchers also accounted for the Doppler effect, the same phenomenon that changes the pitch of a passing ambulance siren.
From Science Daily ● Jul. 14, 2026
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
This red shift, observed in the spectral lines of distant galaxies and interpreted as a Doppler effect, is the key to cosmology.
From "Cosmos" by Carl Sagan
