Show Jt COLD I LIGHT T IS IS' IS ISI NEW INVENTION French Fr Scientist Demonstrates 1 th t His Illuminator ti CHEAPER AND SAFER Professor Dussaud Places Discovery at atO r J O Disposal of His Hil Government Which Is II Experimenting at Lighthouses Lighthouse With Great Groat Success Success Based Based on Prini PrinI Principle Principle Prin Prin- i j d j ciple of the Repose Reposo of Matter J r.- r. larf Park The cold light Is 18 a new now invention in which it is b predicted will revolutionize revolutionize rev rev- I all forms Corms of ot Illumination Professor Branly Informed the Academy Acad Acad- I f t t emy of ot Sciences of ot this discovery giving give In lug ing the credit of ot it to his former pupil i Professor Protessor Before BeCore a distinguished distin distin- d company of or ambassadors academicians acad and the French aristocracy Professor Du Dussaud gave a r l tion of ot his Invention It is based on r J the principle of or the repose of ot matter j. j une the theory being that like animal organisms or or- matter needs r rest t or molecular molecular r r- r ular equilibrium It Is known that If U I. I one pair of or shoes are arc worn constantly by the average person they will last four tour months month but that two pairs of ot shoes worn alternately tely will last not kir sixteen months The void light Is an application of ot this principle to Incandescent electric 1 lamps the We light being concentrated on ti a single point by all the filaments work work- 4 4 jf 7 hf f f z t 1 lir I w y f f. f l I x y y i i i Ul e t ift I j I N m I j LIO WHERE EXPERIMENTS ARE ABB DEUG BE BE- IKO U CARRIED ON I j 1 I I t 1 Ing ng su successively and projected through I i 1 a lens Iena multiplying illumination a thou thou- I he e advantages claimed for tor this light are First That First That there is no danger of ot fire tire from it gives Ives out no heat r Second d. d Thai That It requires times less les current which can Clin be generated b bya a tI tiny y portable battery r Third That That It ft contains the ultra violet violet vio let lct rays requiring times less electricity elec clec and with an un Inexpensive apparatus apparatus ap ap- ap i can be used for tor moving pic- pic i I lures Mures l In n schools eliminating danger I Photographers grap ers are expected to abandon aban aban- 4 don magnesium for Cor a cold light attachment attachment at at- on a camera gives results with an exposure of ot one fourth of ot the time timo needed for magnesium j i I This invention will be especially valuable val vat n 61 for Cor lighthouses submarines and I aerial navigation I Professor Dussa Dussaud ud has pa patriotically paced pa placed d his discovery at ut the disposal of ot the war ministry whose experiments at the Biarritz lighthouse were sive sho Dussaud paid a tribute to his master Branly as the first discoverer I of the principle of or wireless telegraphy Which he said was afterward put to practical JI use by Marconi t I I |