A large number of things—some desirable, some not—can happen to a radio wave on its way from one place to another. In the simplest case two antennas (a transmitter and a receiver) are located so that ...

Using data on electromagnetic (EM) waves and plasma particles measured simultaneously via multiple satellites, an international collaborative research group has discovered the existence of invisible ...

Wave propagation in water waves constitutes a fundamental aspect of coastal and ocean engineering, where the interaction between incident waves and periodic structures can give rise to Bragg resonance ...

Figure 1Schematic of polariton propagations under real frequency and synthesized complex frequency excitation. While polariton waves at real frequencies have limited propagation distance, combining ...

Deep-water wave groups are known to be unstable and become rogue. Such unstable wave groups propagate independently regardless of interference. Results seem to support the concept of an unperturbed ...

July 17 (UPI) --Engineers have developed a way to more efficiently propagate sound waves along the boundaries of topological materials. The breakthrough, described Friday in the journal Science ...

The first theoretical models of the propagation of an electromagnetic field in a waveguide date back to the second half of the 19th century (Hertz, Debye, Rayleigh). The technological fallout for long ...

In 2020, astronomers revealed the existence of an incredible cosmic structure right in our galactic neighborhood called the Radcliffe Wave, a wave-shaped chain of stars — and their epic clouds of gas ...

Traveling-wave parametric amplifiers (TWPAs) are electronic devices that boost weak microwave signals (i.e., electromagnetic waves with frequencies typically ranging between 1 and 100 GHz). Recently, ...

A research group has successfully developed a wave-based acoustics simulation that can make highly accurate time-domain estimations of acoustics in large-scale interior spaces (such as concert halls) ...