Is sound real or only in our heads? What is its nature?

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Created by: Yathish Dhavala (http://www.youtube.com/yathish1618)
Narrated by: Claudio Napoleoni (http://www.cnvoiceovers.ca)
Soundtrack: http://goo.gl/9IpSNe

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References & Further reading:
http://www.news.harvard.edu/gazette/1…
http://plato.stanford.edu/entries/sou…

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Category:

Cosmos