Related terms:
prf
fizeau
doppler
redshift
moving
galaxies
observer
antenna
light pulse
ultrasonic
simultaneity
doppler shift
elapsed time
relative
spectral line
time dilation
weather radar
blood flow
relativity
relativistic
inertial frame
wavelength
measurements
special relativity
gravitational field
general relativity
relativistic doppler effect
gravitational time dilation
cosmic microwave background
electromagnetic radiation
Wikipedia sources:
Redshift
Doppler effect
Radar
Doppler radar
Time dilation
Black body
Leslie speaker
George Smoot
Twin paradox
Speed of light
Medical ultrasonography
Context for words:
doppler
effect
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