Seal of Ap­proval

Sport Diver - - Dive Briefs -

The U.S. Navy is look­ing to seals for help, but the furry ones this time. Seals gain in­sight about prey through their whiskers as fish swim by, even in poor con­di­tions. Re­searchers at the Naval Un­der­sea War­fare Cen­ter hope to re­verse-en­gi­neer these nat­u­ral won­ders and cre­ate pas­sive sen­sors that do not need to emit sound like sonar.

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