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What are the fundamentals of acoustics?

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Unlike electromagnetic radiation , which can travel in the vacuum of free space, sound Waves require a medium (solid, liquid, or gas) in which to travel. Another important difference is that sound travels much slower than electromagnetic radiation... Sound waves are longitudinal, which means that the material particles transmitting the waves oscillate in the direction of propagation. Important factors to be considered in working with sound include reverberation and interference... Reflection of sound sometimes causes an echo . Depending on the location of the listener and the frequency of the sound, varying degrees of interference between the primary sound and its reflections will be produced.

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Get more facts and information about acoustics . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

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