Tuesday, November 29, 2016

Sound does not travel in straight lines https://www.youtube.com/watch?v=_lB8e9OY0-U&t=3s

Sound does not travel in straight lines https://www.youtube.com/watch?v=_lB8e9OY0-U&t=3s
by Dave Rat

November 29, 2016 at 07:24PM
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