<unk> <unk> effect or<unk> shift) is the frequency change of a wave for observer relative to its source. It may also refer to: *<unk> (surname), a surname and a list of people with the name * Christian<unk> (1803–1853), Austrian mathematician and physicist *<unk> (building), a building in Seattle, home to Amazon.com's corporate headquarters *<unk> (crater), a lunar impact crater *<unk> (novel), a novel by Erlend Loe * 3905<unk>  an asteroid *<unk>  the mascot of the WNBA's Seattle Storm See also== * Dr.<unk>  the villain from Mega Man X3 *<unk> beaming *<unk> broadening *<unk> cooling *<unk> cooling limit *<unk> echocardiography *<unk> ultrasound, also called<unk> sonography * Transcranial<unk> *<unk> fetal monitor *<unk> LIDAR<unk> navigation set *<unk> radar *<unk> weather radar *<unk> spectroscopy<unk> velocity sensor * Laser<unk> velocimetry * Laser<unk> vibrometer * Photoacoustic<unk> effect * Photon<unk> velocimetry * Pulse-Doppler radar * Relativistic<unk> effect *
Doppler 
VistA Imaging
Dye tracing
Cardiophysics
Birmingham gauge
Biomedical spectroscopy
Triangle of auscultation
Circulation Research