Doppler
Christian Johann, 1803–53, Austrian physicist: discovered the Doppler effect.
Words Nearby Doppler
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use Doppler in a sentence
Collins’ protocol calls for additional imaging with a 3D or 4D Doppler, which allows a physician to evaluate the nooks and crannies of the fetus and the cord.
What umbilical cord tests can and can’t tell us about stillbirths | Purbita Saha | July 8, 2021 | Popular-ScienceRoutine prenatal care already typically involves one or two ultrasounds using a two-dimensional Doppler—which shows a flat, two-dimensional image on a screen— to check on fetal growth and health between weeks 18 and 22 of pregnancy.
What umbilical cord tests can and can’t tell us about stillbirths | Purbita Saha | July 8, 2021 | Popular-ScienceIt was first implemented in the 2019 summer Atlantic League via the “TrackMan,” a system that measures the flight of a baseball using a 3D Doppler radar.
That is, it was triggering a sequence of tornado warnings, based on Doppler radar indications of a rotating region in the lower cloud, called a mesocyclone.
How a tornadic storm tore through West Virginia and parts of northern Maryland Monday | Jeffrey Halverson, Jason Samenow | May 6, 2021 | Washington PostIn physics, the Doppler effect describes how a noise like a coming train will always sound different when it approaches than when it recedes.
‘Beloved Beasts’ Is a Riveting History of Conservation | Erica Berry | March 12, 2021 | Outside Online
On each orbit, the planets pull the star slightly, which can be detected by the Doppler effect.
Also new this year, in the wake of Sandy, NOAA will receive real time Doppler radar data from its “Hurricane Hunter” planes.
Hurricane Season Is Starting, and Projections Are Higher Than Average | Eliza Shapiro | May 29, 2013 | THE DAILY BEASTThe idea, initiated by Christian Doppler at Prague in 1842, was originally applied to sound.
Astronomy of To-day | Cecil G. DolmageThe method of detecting binary stars by means of the spectroscope is an application of Doppler's principle.
Astronomy of To-day | Cecil G. DolmageThe principle that the refrangibility of light is altered by end-on motion was enunciated by Christian Doppler of Prague in 1842.
Angle, strength and Doppler movement were computed to find course and distance.
Planet of the Damned | Harry HarrisonSpectroscopic determinations of the velocities, through the Doppler-principle, are generally expressed in km.
Lectures on Stellar Statistics | Carl Vilhelm Ludvig Charlier
Scientific definitions for Doppler
[ dŏp′lər ]
Austrian physicist and astronomer who in 1842 explained the effect, now named for him, of variations in the frequency of waves as a result of the relative motion of the wave source with respect to the observer.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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