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In laser cooling, what viscous-looking six-beam arrangement based on Doppler cooling is named for a sticky liquid?
Answer
optical molasses
In duplex ultrasonography, Doppler flow data are combined with which grayscale ultrasound mode?
Answer
B-mode
What handheld Doppler device is used to listen to a fetus's heartbeat?
Answer
Doppler fetal monitor
What does the D stand for in the U.S. weather radar name WSR-88D?
Answer
Doppler
Doppler's 1842 paper focused especially on the colored light of what star systems?
Answer
binary stars
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What handheld Doppler device is used to listen to a fetus's heartbeat?
Answer
Doppler fetal monitor
Which Doppler ultrasound mode displays velocity information as a graph over time?
Answer
Spectral Doppler
What is the change in wavelength of light due to gravity, analogous to a Doppler shift, called?
Answer
Gravitational redshift