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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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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: 4313

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: 2372

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: 1154

Red Bull Stratos Speed of Sound

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

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Hits: 2466

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: 3708

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: 1580

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: 2796

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: 1647

Sound and Hearing

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

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Hits: 1176

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