Doppler Effect

The Doppler effect is a change in apparent frequency of a wave due to the relative motion of wave emitter and detector.
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EM Waves from an Accelerating Charge
The emission of light, or electromagnetic waves, due to accelerating charges, is how we can see objects.
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Antenna

Antennas are used to detect electromagnetic waves.
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Electromagnetic Plane Waves

Plane waves is the simplest approximation to electromagnetic radiation.
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Polarization
The polarization of electromagnetic waves describes the direction of the oscillating electric, or magnetic, field.
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Wave Equation

The motion of a wave can be determined by considering the forces on the individual elements of the material through-which the wave travels.
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Oscillator Chain
The Oscillator Chain provides a microscopic physical model for the oscillatory motion in a transverse wave.
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Non-Linear Waves

The simple wave-equation can be expanded to include terms to model more complicated physics.
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Solitons

Solitons give a model for wave pulses that maintain their shape as they propagate.
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