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.

Fisheries acoustics uses sound waves to detect who's swimming through Maine's waters. At its core, fisheries acoustics is essentially a really "fancy fish finder," says Aaron Whitman, a senior ...

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 ...