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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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Hits: 373

hyperphysics

Ultrasonic Sound

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

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Hits: 1181

Buzz like a bee

A fun activity about sound and vibrations to make a little toy that makes a sound like a bee. All you need is a two lollipop sticks, a rubber band, some card and some string.

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Hits: 20

hyperphysics

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: 1302

Bell Jar

Fun demonstration of air pressure with shaving foam and a vacuum pump.

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What is sound?

An explanation of sound and how it relates to space.

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Hits: 1944

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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Hits: 1696

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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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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