Scientists at the University of Illinois in the United States have developed and successfully demonstrated a sonic cloak that could make submarines completely invisible to sonar.
The team of scientists, led by mechanical science and engineering professor Nicholas Fang, announced earlier this month that they have produced and demonstrated an acoustic cloak that makes underwater objects invisible to sonar and other ultrasound waves, finally proving what has long been speculated.
“We are not talking about science fiction. We are talking about controlling sound waves by bending and twisting them in a designer space,” Fang said in a statement. “This is certainly not some trick Harry Potter is playing with.”
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