doppler

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doppler

Christian Doppler observed the change in pitch of a passing train's whistle.

Definition

Proper noun 1. Christian Doppler: An Austrian physicist and mathematician, renowned for his 1842 description of the phenomenon now known as the Doppler effect. He made significant contributions to the fields of physics and astronomy.

Usage
  • The principle is named after Doppler, who first proposed it.
  • Doppler's work laid the foundation for modern applications in radar and astronomy.
Advanced Usage
  • The surname "Doppler" is almost exclusively used attributively to form compound terms related to his discovery. These are considered separate lexical items.
    • The Doppler shift is crucial for measuring the speed of distant stars.
    • A Doppler radar system tracks weather patterns.
Variants and Related Words
  • Doppler effect (n): The change in frequency or wavelength of a wave in relation to an observer who is moving relative to the source of the wave.
  • Doppler shift (n): Another term for the Doppler effect, commonly used in astronomy and physics.
  • Doppler radar (n): A radar system that uses the Doppler effect to determine the velocity of objects, such as precipitation or vehicles.
Synonyms
  • There are no direct synonyms for the proper noun "Doppler" referring to the person. For the related scientific phenomenon, synonyms include Doppler shift.
doppler

Christian Doppler observed the change in pitch of a passing train's whistle.

Noun
  1. Austrian physicist famous for his discovery of the Doppler effect (1803-1853)

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