Doppler effect

Example Sentences

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Keck Observatory on Hawaii's Mauna Kea, they could detect slight variations in stellar motion via the redshift and blueshift of the Doppler effect -- which helped them determine planetary mass readings of unprecedented precision.

From Science Daily • Jan. 26, 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

We can determine the present rate of expansion by measuring the velocities at which other galaxies are moving away from us, using the Doppler effect.

From "A Brief History of Time: And Other Essays" by Stephen Hawking