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Doppler Shift (General)
Generalised animation of the increase in frequency observed in waves emitted from an approaching source (or conversely a decrease in frequency in waves emitted from a receding source). This Doppler Shift happens in sound waves (e.g. a siren of an approaching emergency vehicle or the change in pitch of a passing car engine) and in light waves (the red Doppler shift of a receding star or the blue Doppler shift of an approaching star, redshift and blueshift).
This animation uses a ball as the wave source. As the ball moves from left to right it emits wave-fronts that continue to radiate out from their position of origin. The ball moves on and creates a new point of origin for the next wavefront and so on. In this way, the waves bunch together at the front of the ball and spread out behind. Similar to a jet plane approaching the speed of sound and radiating sound waves. In the case of light waves then the higher frequency at the front yields a bluer light (blue shift), while behind the light source (e.g. a star) the light is stretched out, lengthening the frequency, creating a redshift.
Animation ID: DOPPLER_Shift_UHD
Duration: 0:13
Animation resolution: 3840x2160 pixels @ 30.0 fps, ~13.1 Mbits/s
Animation keywords: blueshift, bow wave, constructive interference, destructive interference, Doppler, Doppler shift, frequency, physics, redshift, wake, wave source, waves
Doppler Shift (General)2020-11-03T02:14:02ZGeneralised animation of the increase in frequency observed in waves emitted from an approaching source (or conversely a decrease in frequency in waves emitted from a receding source). This Doppler Shift happens in sound waves (e.g. a siren of an appro...PT13Shttps://d38zjy0x98992m.cloudfront.net/54c7e0da-2c06-4aea-bb8d-970fa4665543/DOPPLER_Shift_UHD_xlarge.jpghttps://d38zjy0x98992m.cloudfront.net/54c7e0da-2c06-4aea-bb8d-970fa4665543/DOPPLER_Shift_UHD_mp4_hd_video.mp4https://www.scientific.pictures/-/galleries/waves/-/medias/54c7e0da-2c06-4aea-bb8d-970fa4665543/pricehttps://www.scientific.pictures/-/galleries/waves/-/medias/54c7e0da-2c06-4aea-bb8d-970fa4665543/price

MACH 2 Doppler Effect at Twice the Speed of Sound (or Ship's Bow Wave)1970-01-01T00:00:00+00:00Generalised animation of a moving wave source travelling at twice the speed as the waves. An example would be an aircraft travelling at Mach 2. The waves expand outwards but lag behind the object creating a conical shock wave (Mach cone), or a wake in ...PT13Shttps://d38zjy0x98992m.cloudfront.net/dbf664b4-cfde-4309-8574-75023c2ae1f5/MACH_Two_UHD_xlarge.jpghttps://d38zjy0x98992m.cloudfront.net/dbf664b4-cfde-4309-8574-75023c2ae1f5/MACH_Two_UHD_mp4_hd_video.mp4https://www.scientific.pictures/-/galleries/waves/-/medias/dbf664b4-cfde-4309-8574-75023c2ae1f5/pricehttps://www.scientific.pictures/-/galleries/waves/-/medias/dbf664b4-cfde-4309-8574-75023c2ae1f5/price