Project Gutenberg on Nostr: "The frequency of a wave changes depending on the motion of the source relative to ...
"The frequency of a wave changes depending on the motion of the source relative to the observer."
Austrian mathematician & physicist Christian Doppler died #OTD in 1853.
He is best known for his discovery of the Doppler effect which describes the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. This principle has since been applied in various fields, including astronomy, medicine (Doppler ultrasound) & radar technology.
#science
Published at
2024-03-17 15:20:40Event JSON
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