Is it conceivable for a comparably modest diesel-electric submarine to evade the multiple layers of defense of a U.S. Navy ...

Staying ahead of the freight market just got easier. We’re excited to roll out a new enhancement to our charting experience: ...

A novel radar sensing system for non-contact and continuous detection of heart sound is proposed in this paper, which is a custom designed 120 GHz interferometric radar. The moving trajectory of the ...

When a drummer hits a drum, the surface vibrates and creates sound—a signal we recognize as music. But once those vibrations ...

Learn about the theory suggesting that the Earth sits inside of a void, which may explain why the universe appears to expand at an accelerating rate.

Get powerful, Radio Wave Circle Sonar Radar Signal Animation Stock Video pre-shot video to fit your next project or storyboard.

Osaka Metropolitan University researchers have solved a long-standing mystery in the field of sonochemistry: why do chemical ...

In the quiet depths of Türkiye’s Blue Homeland, a new chapter of national defence and engineering unfolds beneath the waves.

Researchers have developed an ultra-thin drumhead-like membrane that lets sound signals, or phonons, travel through it with ...

Various analog situations in acoustics and electromagnetic waves are described. Certain higher order modes of airborne sound waves in tubes possess a transverse or polarized nature, and ...