The reason that horizontal antennas are not effective for ground wave propagation is that the horizontal electric field that they create is short circuited by the earth. Ground wave propagation is ...

IN a paper to be published shortly 1, I have discussed the problem of ground-wave transmission across a land/sea boundary, and have predicted that under some conditions there should be a marked ...

The specific spatial size of the EMIC wave source region and the 3D aspect of how the propagation path is formed from space to ground are yet to be elucidated. The international collaborative ...

The TRANSMISSION of acoustic energy through a medium via a SOUND WAVE. See: SOUND ... Wiener and Keast, "Experimental Study of the Propagation of Sound Over Ground," Journal of the Acoustical Society ...

Researchers have mathematically elucidated how the presence of crystals and gas bubbles in magma affects the propagation of seismic P-waves. A novel equation was derived to describe the travel of ...