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Old 10-13-2015, 12:41 PM
Leo Bloom Leo Bloom is offline
Join Date: Jun 2009
Location: Here
Posts: 12,217
I do not see (or it has not been shown) why directional acoustic collectors should be pointy.

Given the 3-D scoop, which is the way to go (yay Nature!) perhaps "optimal" stiffness to strain considerations of cartilage come into play.