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Discusses the Doppler effect as it applies to different situations, such as a stationary source of sound with the observer moving, a stationary observer, and the sound source and observer both moving. Police radar, satellite surveillance radar, radar astronomy, and the Doppler navigator, are discussed as applications of Doppler shift. (JR)

Presents data on aircraft take off and landing, including measurements of turning speeds, triangle of velocities method, fuel consumption, air pressure differences, air turbulence, maintenance inspection, and airborne radar. Indicates the materials can serve as relevant physics examples in teaching sixth and seventh form pupils. (CC)