Researchers have developed a novel metasurface-based method to generate terahertz complex vector light fields using surface ...

The S wave shadow zone is the area of the Earth’s surface where S waves are not detected ... with a solid mantle and a liquid core. From the diagram, we can see the region where S waves are ...

There are three types of seismic waves – P waves, S waves and surface waves. P waves are longitudinal waves, and their relative speed is faster than other waves. P waves can travel through ...