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ドップラー効果
1. Doppler effectPhysics
2. Doppler effectThe Doppler effect (or Doppler shift), named after Austrian, Christian Doppler, who proposed it in 1842 in Prague, is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source. It is commonly heard when a vehicle sounding a siren or horn approaches, passes, and recedes from an observer.
Read “Doppler effect” on English Wikipedia
Read “ドップラー効果” on Japanese Wikipedia
Read “Doppler effect” on DBpedia
Read “Doppler effect” on English Wikipedia
Read “ドップラー効果” on Japanese Wikipedia
Read “Doppler effect” on DBpedia
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