Show Mirage Produced by Passage of 01 Light Rays The mirage e. e Is II an optical Illusion In which Images of ot distant objects cul are areleen seen leen as If It inverted or raised In the theair theair air says saYI the Detroit News Newl Tile phe phenomenon was first explained b by a Frenchman who went with Napoleon on hIs bis first fint expedition In Egypt JUPt where mirages are er very common The phenomenon Is s due to the rays of ot light being changed in their direction direction tion when Ohen passing through colder or hotter hoUer strata of air Layers of ot air In contact with the surface of ot deserts become become become be be- come greatly expanded d and find rarefied while those thole Immediately above remain denser thus thull causing the light rays to tobe tobe tobe be bent upward However over water over water the condition Is II just the reverse The layers above are warmer than those next Dext to the water voter When an on object appears appears ap ap- ap- ap pears to be lifted above e Its lIs real position lion tion In the phenomenon it 11 is II called looming In the case of ot looming the reflection Is from the sky while In ordinary ordinary or or- mirage It Is from the the earth eurth Mirages are common In Egypt Persia Turkestan California Nevada and Alaska |