Assertion: doppler effect | /r/HasProperty | observed
Facets:
value: in sound
type: OTHER
value: directly
type: MANNER
value: always
type: DEGREE
value: in frequency of a transmitted wave
type: OTHER
value: for light
type: PURPOSE
Source sentences:
text: The Doppler effect is observed whenever the source of waves is moving with respect to an observer.
text: A certain persistent critic of relativity maintained that, although the experiment was consistent with general relativity, it refuted special relativity, his point being that since the emitter and absorber were in uniform relative motion, special relativity demanded that a Doppler shift be observed.
text: This was postulated in 1842 by Christian Doppler and put on a firm mathematical basis by Armand Fizeau in 1848, The Doppler Effect in Radar is observable for light and is responsible for the so-called red shift of the spectral lines from stellar objects moving away from the solar system.
text: The Doppler shift is itself an observable.
text: The Doppler effect is the observed change in frequency of a transmitted wave due to the relative motion between the source of the sound and the receiver or observer.
text: In sound, the Doppler effect is observed as a difference in the pitch of a sound.
text: The Doppler effect in sound waves can be observed directly.
text: The Doppler effect in sound waves can be observed directly.
text: As blood moves through an artery, its top speed is 0.89 MPH (0.4 m/s)—not very fast, yet fast enough, given the small area in which movement is taking place, for the Doppler effect to be observed.
text: The Doppler effect is observed because the distance between the source of sound and the observer is changing.
text: The Doppler effect is observed whenever the speed of the source is moving slower than the speed of the waves.
text: Since electromagnetic radiation is also a wave, the Doppler Effect can also be observed.
text: Doppler Effect is observed and measured on the target side.
text: The fallacy with this critic's argument was, as demonstrated in section Point of null frequency shift, that it is simply not true that a Doppler shift must always be observed between two frames in uniform relative motion.