Evan's Space

Wonders of Physics

2 thoughts on “Range of human audibility”

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  1. Sam Gibbs
    January 25, 2014 at 3:16 PM

    Hello Evan …i love your work and always look forward to more postings to this blog.

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  2. Sam Gibbs
    February 10, 2014 at 5:35 PM

    Hello Evan
    Can you kindly contact me at my email add gibbs.sam@gmail.com
    Hope to hear from you soon.
    Kind regards
    Sam

    Reply

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