National Geographic : 1920 Aug
THE-LIGHTS THAT DID NOT FAIL O UR Army and Navy asked for electric lights, big and little, bright and dim, and in a hurry. MAZDA Service knew how they should be made. There were huge and blinding searchlights, and tiny lamps to illumi nate the compasses and instrument boards of airplanes. There was a pilot light for dirigibles, built to float upon the water, and weighing, battery and all, one pound. There were ship-lantern lights of special blue glass, of high penetrating power and low visibility, so that no lurking U-boat should catch their glow. There were red, white and blue lamps for daylight signaling. There were lamps for gun sights, and very small ones, the size of wheat grains, for the use of surgeons. The list could be prolonged almost indefinitely. The accumulated knowledge and technical experience of MAZDA Service, of the chemists, physicists, metallurgists and engineers in the Research Laboratories and two score related factories, bore notable fruit in this multitude of lamps. For more than a decade MAZDA Service has carried forward the art of electric lighting, of which the MAZDA lamp is the highest expression. From the compounding of the glass to the spinning of web-fine filaments from stubborn metal, MAZDA Service has led the way. These reserves of knowl edge and experience, backed by the splendid facilities of the Research Laboratories, produced the specifica tions for our war lamps. Many of them were lamps of every day use, tried and proved fit for active duty; others were adaptations of exist ing types, and many were entirely new. The war-time achievements of MAZDA Service in the development of electric lamps mean improvement and higher efficiency in peace-time lighting. MAZDA RESEARCHILABORATORIES OF GENERAL ELECTRIC COMPANY "Mention The Geographic-It identifies you"