Tags - retroreflector

The ' retroreflector ' reflects sound in the direction it came from

TEHRAN, June 27 -Scientists have developed a superior sound-reflecting material. The " retroreflector " technology can bounce back sound waves in the direction they came from.

News ID: 25050 Publish Date : 2018/06/27

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The ' retroreflector ' reflects sound in the direction it came from

China’s EXIM inks $1.5bn deal for high-speed rail in Iran (1 Comment)