THE modified form of the ionic deflexion theory of wave propagation, discussed by Messrs. Nichols and Schelling (NATURE, March 7, vol. 115, p. 334), appears to have been suggested in England and ...

Wide-Incident-Angle Radio-Wave Absorber with Loop-Shape Frequency Selective Surface. The 29th International Symposium on ...

https://doi.org/10.1086/679582 • https://www.jstor.org/stable/10.1086/679582 AbstractIn this tutorial we summarize the physics and mathematics behind refractive ...

The oscillating electric and magnetic fields, E and B are perpendicular to each other, and to the direction of propagation of ... and ε its permittivity. Radio waves are produced by the ...

AMONG the facts to be explained in a satisfactory theory of the propagation of radio waves over the earth's surface are the curvature of the rays in transmission between stations far apart ...