Northrop Grumman Aerospace Systems, Redondo Beach, California, has been awarded a $30 million indefinite-delivery/indefinite-quantity contract for the W/V-band ...

A metamaterial elongates the propagation path of sound waves, allowing low-frequency noise control without the need for bulky materials.

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...