| Show Hea heaviside e layer theory ceory is proved may open way to great strides in radio washington existence of a cell ing over the earth which exerts a strong influence on radio com munica tion ha has been established by the naval research laboratory in association with the tho department of terrestrial magnetism of the carnegie institution it waa was announced by secretary of the interior wlbur wilbur experiments have confirmed the lons long theory advanced several yeara yeam ago by the late sir oliver heaviside of an gin region in the higher levels of the earths at it was announced observations ions indicated that the plane of max maximum imura density or ceiling cel ling lies at a varying distance above the earths surface rising and falling as atmospheric mo conditions vary importance to radio bellini behind this purely scientific announcement no Is news of ast importance to radio development both commercial and broadcast it means that the short wn wa e transmission field now may be opened with in the near future mathematical certainty as to what nay may be expected in transmission and reception that within a brief time the commercial radio field will ill expand tremendously with moderate power cheap short wave stations supplanting present high power ones iab prohibitive erection costs that and vina reception of broadcast programs will undergo important changes that fading the bugaboo that has hide ruined many a fine evening Is well on the yay of being overcome the condit condition lon Is in further explained as follows thie this layer acte as a deflecting surface to electro electromagnetic magnetic dwares re suits obtained are based on ott an analysts of the phenomenon known as skip dist distance anceo checked by a simple mechanical chan ch leal device by means of which the effective eff effe etive distance of the deflecting ting layers may be actually measured in seeking to account for this a theory aras developed at the research laboratory that there was a relation between the earths magnetic field frequency of wave waves ased used skip distances observed aad and hel height of the layer yel this relation could be and waa was worked out mathematically joint experiments with the car cecle institution of washington approached pro ached solution of the problem from a different ancle angle demonstrating the existence of two waves one of them arriving by way of the earth and the other by way of the layer abe abd knowledge gained will play an important part in further advance ing the radio art |
