Doppler
1
7.2
- proper noun
- /ˈdɑːplər/
:
Doppler
- "All of you had either the means, motive or opportunity," said Inspector Doppler, as he thoughtfully digested another spoonfuI of his favourite pud.
Examples
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Ah, Dr. Doppler, l presume?
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May l introduce Dr. Doppler?
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I loved your Inspector Doppler.
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Detective Inspector Doppler, sir, of the Wiltshire County Constabulary.
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To explain why stars had different colors, Christian Doppler at the University of Prague proposed in 1842 that stars have different colors because of shifts in wavelength due to radial motion.
Academic text (1990) -
Austrian physicist Christian Doppler (1803-1853) explained why a sound increases in pitch as it approaches the listener and then decreases in pitch as it moves away.
Academic text (2004) -
In his famous work, Christian Doppler explained how the sound of a train changes as it approaches and then moves away.
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Dr. Doppler is celebrated for his contributions to the field of physics and the study of wave phenomena.
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The principle known as the Doppler effect is fundamental in understanding how sound waves behave in motion.
Compounds
- Specialized
1
6.7
A change in sound or light you notice when the thing making it and you move
- Specialized
1
6.5
A change in sound pitch or light colour when the source and observer move
Surface Forms
Etymology
Doppler is the last name of Christian Doppler, an Austrian scientist who first described the idea in 1842. Because he showed how waves change with motion, his name is now used for the 'Doppler' effect and for devices that use that effect.