Show 7 Sunshine un s ins a of f S 'S Summer i for 01 7 Wilter I V s ITHACA N N. T T. OF Tire AP-Tire The POS POS- oc ot artificially l 3 generating gOll J in iu Sinter vinter r at s Bome sortie oC ot the tho ner say rays i ot of auit summer u ti time is tl reported report d t to the the- he- he Optical oct oc ty h of ot America Amerl a. a v. v It IB proposed fo to accomplish this this' th s' s nh Ith tUn tungsten ten lights differing but front from artificial l lights now in tn use This iu property of tungsten In ill pro- pro I ultra Violet Iolet rays Pays rays which Jrp rr p called d art artificial sun BUt sun sun- hin and the tho possibilities of US using ng t to wake make up for winters winter's dreary Ight e l in cities is IB de- de Sc In tn a t made mado at Cornell ml b by W W. 1 E. E th an andra and ra prances nce X I ChristIson I n o of the General G n lal Je company company Heretofore eret ro the tho artificial taa been generated 1 principally by lamps amp u using m mercury c carion car car- r- r Jon ion arcs or other methods not en em- In ordinary r oni lighting o The Tho report says say that the amount t f artificial sunshine from tungsten s very r small annuli but p points out ut experiment tend lend to prove rov hat only very ery small amounts of Q hi his kind of light are needed for purposes ses Further r bore nor it says that winter winter- ht Jb yields elds td very rY little flute ultra ultraviolet violet 1 md Ind pro probably ably not at alt all in lit manyU many U ity winter atmospheres It must mist b ho be remembered also ay the report that tb t it IL te ls' In In Inthe the Star months that the toe neEd ne d is 18 rf for ultra uHra ultraviolet violet energy It If the children in their play play- antis antis' or r r-ch r word t-er t under from th the tungsten lamp rn in n. n ultra violet I let t bulbs hey hr 11 might bo be supplied ll d. d a consider considerable i able ile le amount of ot the energy gy W without bel subjected t to too wo great an mount or a too high h level Ic or ot Ulu It must mud be remembered also that L t much creator portion of the the- body co l t be e exposed in a a. warm warm w rm room than 1 is outdoors outdoor on a n winter win win- ter ler day di J |