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Harmonic oscillations, wave propagation, sine wave, frequency, wavelength, wave speed, period of oscillation, running wave, standing wave, plane wave, spherical wave, transversal wave, longitudinal wave,...
The confused waves found in a gale at sea are shown experimentally to be made up of a cumulation of simple waves of various wavelengths. Aerial and tank scenes show how every is distributed in each wave. The...
Introduces basic terms such as frequency, wave length, wave number and photon energy with simple calculations. The electromagnetic spectrum and inter-action between radiation and matter is introduced as is...
Computer-generated images of a stretched string on which disturbances of various shapes propagate are used to illustrate the mathematical properties of transverse waves. Shows the reflection and...
Recording illustrating the various kinds of pressure waves found in a gas, using an hydraulic analogy.
The relationship between motion, both radial and transverse, and resulting changes in apparent wavelength is illustrated for sound and light. The use of the Doppler effect in astronomy is indicated. Teaching...
Deals in a non-mathematical way with spectra of input waveforms obtained on a spectrum analyser. The waveforms treated in detail are a beat pattern and a sequence of square waves. The effects on the square...
Ocean waves are followed from generation and propagation to final dissipation on the beaches of Northumberland. The interaction between waves and coastal configurations of various types is demonstrated,...
Explains how standing waves were associated only with sound waves until it was shown that the principle of superposition is applicable to all waves. Recent developments with low-cost laser and holographic...
Animated diagrams show how intelligence is impressed on a carrier wave to form modulation. Explains vectors, amplitude phase and frequency modulation.*
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