AMONG the facts to be explained in a satisfactory theory of the propagation of radio waves over the ... in which the magnitude of the received wave fluctuates more or less rapidly, the differences ...

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 ...

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 ...