Nikola Tesla - Wave Propagation — Wave Propagation — A large number of things—some desirable, some not—can happen to a radio wave on its way from one place to another.

The exercise challenges competitors with voice and data contacts between domestic and international teams via HF sky-wave propagation. ... "If the satellites fall out of the sky, cell towers go ...

Abstract. The strength of the low-angle sky waves radiated by a medium-frequency aerial depends on the conductivity of the ground extending for many wavelengths in the direction of propagation.

Mathematical prediction of seismic wave propagation in magma containing crystals and bubbles. ScienceDaily. Retrieved June 11, 2025 from www.sciencedaily.com / releases / 2025 / 05 / 250522125403.htm.

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could also be used in technical applications with electromagnetic waves.

Whether using sky wave propagation or a close range network utilizing ground waves, HF communication is proving to be a practical solution in growing use by contraband smugglers, pirates and ...