Stealth rubber coating may make submarines almost invisible to sonar

Pc simulations discovered {that a} materials created from three layers of rubber may take up most frequencies used for sonar, which if affixed to a submarine would make it tough to detect

By Karmela Padavic-Callaghan

A skinny coating of a rubbery materials may make submarines tougher to detect with sonar.

Sonar locates submarines by emitting sound at many various frequencies. These sound waves replicate off the vessel as an echo which may then be detected by a receiver. However objects lined in supplies that take up sound are laborious for sonar to identify.

Qingxuan Liang at Xi’an Jiaotong College in China and his colleagues have now designed a brand new coating for masking submarines from sonar that, if totally …