| Show HEADLIGHT TO REVEAL ROAD BUT BE DARK DARr Sound Carried On Light Beam Scientific Marvels Marvels Mar Mar- vels Shown Sho CAMBRIDGE Mass Jan IB 15 By The Associated An An era of the ultra violet Iolet ray when sound will be transmitted over beams of invisible light and a mul saul multiplicity multiplicity of scientific marvels hard bard hardly hardly ly yet et envisioned will be common common- commonplace commonplace commonplace place are envisioned by scientists Here are a few of ot the things foreseen by Dr Donald C Stock Stock- Stock Stock-barger barger at the Massachusetts lost lost- Institute tute of technology Motion pictures transmitted on Invisible ultra rays Automobile headlights that will flood highways with invisible light but will themselves be dark Roads fences and sign posts will villi willbe willbe be coated with a substance which will wUl glow when hen beams of light strike them CAN AIM D MESSAGES Wartime messages which may maybe maybe maybo be sent without fear of Interception I mayI Continued on Page rage THO T DARK LIGHT IS LATEST Continued From Vase One because the light rays ray may bo be b to- to to to on a p given civen point paint Other uses ules use for far the tho violet lolet ry rey are arc expected when a IL glass elm Ia s Is la perfected which will allow the th rays ray to pass through and work their curative values on sufferers sufferer from many all ail ailment ments ment and their action In chemis- chemis chemistry try try Is thoroughly understood Dr Stack gave a II graphic demonstration of at the tho magic magi ray and 11 Its properties INVISIBLE BEAMS Motion Malian pictures projected tram from froman froman an ordinary machine machin with a II filter In tho the rear of the lens len to permit only ultra violet Iolet rays ral ray to pass pan through were shot shOot on beam to a fluorescent screen where the they with a a ghost ly Iy greenish blue glow clow The human voice olce coming earning through the ether as a II 1 part art of ot a II radio broadcast was as w sent over aver a ray ot of light but when a II persons person's person hand or 01 any other ather object abject was wa thrust ip 11 the way the sound ceased When the obstruction was was wa re- re removed re removed moved the tho broadcast flooded the once more mare An automobile on an a IL miniature road with scenery and bridges and nd fences fence Illustrated how haw the th dan dancer get ger of ot glare flare from tram headlights at night might be bo eliminated and the theil themselves them bo ho darkened log Ing oft off the ultra violet rays ras ray alone Beams from such headlights will shIne shill brilliant when they fo faH upon roads and guideposts coated with fluorescent substances substance but will be Invisible to other ather ABOUT YE YE-IH 2000 The results result that the demonstration tion foreshadowed may come came Into realization by 2000 A D Dr Stock belle believes Many Can ot of the new developments development In tn this field of at physics are ar his awn owr achievement lie He transmitted the lie human vole a p beam of at ordinary light tar for forthe forth the first time a IL year ago thus thu ac what Alexander Gr Gra Graham ham Iam Bell Dell the th Inventor of ot tho the ide- ide phone tele-phone yhone hone had unsuccessfully attempt attempt- attempted ed Cd 60 years year before While Whilo application of ot some somo om of at his erles will come came sooner oon r than others Dr believes only continued research and tn In In win wIll reveal their tull commercial magnitude op 00 |
