A laser-equipped research platform has, for the first time, photographed airflow just millimeters above ocean waves, ...

Using an innovative laser measurement system, previously unknown and highly complex mechanisms of energy exchange between ...

A scheme for the remote sensing of terahertz waves over distances of tens of metres could have important applications in security and biology. Xi-Cheng Zhang from the Rensselaer Polytechnic ...

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 ...

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 ...