New architecture could be used to create tailored devices that emit or receive only certain frequencies of sound ...

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

An international research team led by the Helmholtz-Zentrum Hereon has, for the first time, succeeded in visualizing and ...

Scanning acoustic microscopy techniques operating at frequencies in the gigahertz range are suitable for the elastic characterization and interior imaging of solid media with micrometer-scale spatial ...

The clearest and widest high-resolution image of the Sun ever captured Solar Orbiter is a space mission of international collaboration between ESA and NASA.

The properties of Cylindrical Internal-Surface Acoustic Waves (CISAW) propagating on the inside surface of a high purity fused quartz tubular fiber are derived from basic principles using a ...

A radar system less powerful than a household microwave oven produced some of the best pictures of the moon ever captured.

Astronomers have discovered a mysterious new type of acoustic wave on the surface of the sun. These high-frequency waves, shown above, swirl three times faster than predicted by current working ...

A new discovery of high-frequency-retrograde vorticity waves in the Sun defy all explanations. The discovery indicates that vortices on the surface of the Sun move at three times the speed as ...