Show 4 U I 1 HERD IS LATEST grhim FATHER AND SON MAKE DISCOVERY THAT WILL CHANGE RADIO USE GROUND after years of experiments new methods of receiving messages has as been found no more static Is result achl chicago ca go static the gr greatest ob in radio communication F has been overcome by a discovery made by two chicago arnat amateurs curs it ib was announced here it is accomplished by picking up ground waves instead of waves that pass through the other ether according acco iding to the discoverers james D and ray gibson father and son fion are tho the inventors the father was for many years a telegraph operator and hla his son was an overseas av aviator I 1 ator during tile the world war it was during the war that the son eon became interested in radio the experiments in radio wore were carried oil on by the father and son after the sons return from tho the wart war and two wo years ago they conceived the idea of using ground currents they used various devices but none worked successfully cess fully then in wrecking one of the contraptions they were startled to discover what they had been ing for the father told ills his story as follows onti afternoon this spring while we were in the throes of disappointment because a certain apparatus which wo we had haa great hopes for turned out a failure ray ilay said to me lets thop chop tho the blamo blame thing up in pieces and throw it awny away im about with it icing in the same frame of mind as ho he was exactly what we d did id sunday while looking over the debris one one of us got a wild idea that we could krould put it toge together again and bury it a little deeper that gave us lis the inkling we had bad been seeking because to our astonishment 4 ashment even in the makeshift way wo we had formed condensers out of the cable it worked passably fair and we were able to get marquette college milwaukee on a three tube bet a 61 atlon we had bad experienced consider considerable trouble with when using an outside aerial with this start in ili the right direction we had the na perfected in a week and were any station wo we desired without interference of any sort there was a great deal of static in the atmosphere during this period but we ex cm none of it with this now new device to s secure perfect cadlo reception for the okli ordinary nory residence all that is required is sixty feet of specially prepared lead sheathed wire divided into condensers together with two pickups pick ups one attached to the end in in the ground and the other in the center fifty feet of this wirtis MA ig buried in the ground to 7 it a depth at 0 eighteen inches inemer to two feet and ten feet is used sort for ivae lead h d into the set of course anything arising above the first firs floor requires just that much more lendin leadin lend lead in not satisfied with their own expert merits mr gabson and ills his son laid it before experts it was waa tested for favo civo months and it was found that the radio waves sent out by broadcasting stations travel through theoph the ground as aft well wall as the tha air these theao ground waves it was mas revealed are freo free from static interference intel ference and weather conditions do not affect them i t once wo we throw a sub antenna in lake Itic michigan higan and then hooked onto a set in a building on shore mr gibson said the results were were the same as chou the aub antenna was burled buried in tho the ground showing that electrical waves sent out by the broadcasting station pass ti trough through water as well as through tho the ground and the air |