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hyperphysics

Sound Intensity

A short section on the intensity of sound with links through to details on decibels and other related areas.

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Hits: 759

The Speed of Sound

The first analytical determination of the speed of sound was given by Isaac Newton in Proposition 49 of Book II of the Principia.

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Hits: 4565

Speed of Sound Calculator

A simple program that allows you to calculate the speed of sound according to temperature humidity and pressure.

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Hits: 2485

hyperphysics

Loudspeaker

The loudspeaker involves electromechanical processes where the amplified audio signal must move a cone or other mechanical device to produce sound like the original sound wave.

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Hits: 1187

Red Bull Stratos Speed of Sound

A website from the record breaking skydive about the speed of sound

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Hits: 2663

Speed of Sound

A great explainer site about how the speed of sound is calculated and how it changes with temperature and altitude.

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Hits: 3908

Hear the sound of the big bang

An article from the Independent newspaper about a physicist who has recreated the sound of the big bang.

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Hits: 1647

How a speaker works

An animated cut-away picture of a loud speaker, with a synchronized oscilloscope screen representation of the sound. Sound included, plus a description of how the alternating current and magnetic ...

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Hits: 2827

Faster than sound

Describes the early attempts to break the sound barrier. Includes descriptions, information, including the latest attempts to beat speed records on land, water and in the air.

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Hits: 1838

Sound and Hearing

Introductory page linking to more information on various aspects of sound and hearing.

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Hits: 1324

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