Evening Republican, Volume 20, Number 308, Rensselaer, Jasper County, 28 December 1916 — NEW SEARCHLIGHT INVENTED [ARTICLE]

NEW SEARCHLIGHT INVENTED

“Scotoscopia” Devised by an Italian, Emits Invisible Rays Illuminating Object Only. Rome. —Signor Giulio UHvi, the inventor of F-rays, was badly injured in a laboratory experiment some time ago, and only recovered after many months spent in a military hospital at Milan. Signor Ulivi announces now that he has succeeded in applying the invisible infra red waves beyond the red band of the spectrum to detect objects in darkness by determining their length. The new invention is known as “Scotdseopia/’ meaning vision in darkness, and consists of a searchlight emitting invisible rays which illuminate distant objects and render tnbm visible only to the observer. Thus by means of Scotoseopic searchlights warships .are enabled to see without being seen. Photographs or rather Scotographs of objects in darkness can be taken and enlarged so that enemy coasts can be mapped. The invention can be used on land and sea as well as in the

air, so that It will be found moa£ useful In waging war against submarines and In the defence ngalnst aerial raids. Signals can be exchanged Invisibly between ships equipped with Scotoscoptlc ap) aratuses and other practical applications of this wonderful invention can be easily obtained.