The Doppler effect is the change in frequency of a wave in relation to an observer who is moving relative to the wave source, commonly heard as the change in pitch of a passing siren.
Facts
Proposed YearSourced to the subject's own account Proposed BySourced to the subject's own account Connections
Belongs To
Source Doppler Effect (Wikipedia)
Proposed By
Additional Source Doppler Effect (Wikipedia)History section (edge: proposed-by, Doppler)
Sources
1. Doppler Effect (Wikipedia)
WikipediaLead section (entity-description)
The Doppler effect is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.
Lead section (proposed-year)
The effect is named after the Austrian physicist Christian Doppler, who proposed it in 1842.
Lead section (proposed-by)
The effect is named after the Austrian physicist Christian Doppler, who proposed it in 1842.
Proposed By: Christian Doppler, History section (edge: proposed-by, Doppler)
Doppler first proposed this effect in 1842 in his treatise Uber das farbige Licht der Doppelsterne und einiger anderer Gestirne des Himmels (On the coloured light of the binary stars and some other stars of the heavens).
Belongs To: Physics, Lead, sentence 1
The Doppler effect (also Doppler shift) is the change in the frequency or, equivalently, the period of a wave in relation to an observer who is moving relative to the source of the wave.
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