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Waves, sound & acoustics

This site gives an overview of the physics of sound through a series of links to relevant articles.

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Introduction to what sound is

A few pages that have interactive elements to demonstrate what sound is.

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Ultrasonic Sound

Talks about the use of ultrasound, sound at frequencies above audible.

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Interference of Sound

A good explanation of how sound waves can interfere and affect what you hear. Includes details of a demonstration with a tuning fork.

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Hits: 1165

What is sound?

An explanation of sound and how it relates to space.

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Hits: 1340

Beat frequencies

When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is ...

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BOOMERanG and the Sound of the Big Bang

Hear the sound of the Big Bang as recreated by John Cramer (link to the audio file at the bottom of the page)

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Hits: 1622

Why do sound waves transmit farther at night?

A simple explanation of why sound travels long distances at night. There are some attractive graphics.

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Hits: 1781

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Reverberation Time

The reverberant sound in an auditorium dies away with time as the sound energy is absorbed by multiple interactions with the surfaces of the room.

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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: 698

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