More Reason for the Surface Navy to Worry
Submarines may get a “Cloak of Silence” further enhancing their already considerable stealth, according to this article from Discovery News:
“Our focus is not about dampening noise, but to guide sound waves around structures,” said Nicholas Fang, a professor a the University of Illinois at Urbana Champaign and coauthor, along with Shu Zhang and Leilei Yin, on a paper that appears in the journal Physical Review Letters.
For example, “if we have a coating on a submarine that bends acoustics waves before they hit the surface, guiding them around the submarine smoothly, then you won’t be able to detect a submarine using sonar.”
The same technology that could render a military submarine invisible to sonar could also be used to create high-definition, in-utero baby pictures or detect previously undetectable, tiny tumors.
I occasionally wonder if we aren’t deluding ourselves, building ever larger warships which are leading to historically smaller fleet numbers. And with all our technology we still haven’t solved the U-boat problem which in the last world war took the combined exerptise and industrial might of 3 navies to finally defeat.