Picture
from:
https://www.pinterest.com/pin/285556432595068140/
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Sound is often defined as noises that humans
can hear. However, sound is much more than what humans can
perceive. If a tree falls in a forest, doesn't it still make
a sound even if no one is there to hear it? We will explore
these ideas and more in the following sections.
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Picture from:
http://www.framingthedialogue.com/archives/2010/page/12/
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