IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. As knowledge of materials and ...

DR. M. LUCKIESH and Dr. F. K. Moss, of the Lighting Research Laboratory of the General Electric oCompany of America, reported at a meeting of the Optical Society of America on October 17 an ...

FOR the lighting of tennis courts it is essential that there should be complete freedom from glare and that the light should have a high speed of discrimination. In Philips Technical Review (Eindhoven ...

Two much-publicized electrical companies—General Electric and Westinghouse—supply most of the U. S. with lamp bulbs. In Europe that function is performed chiefly by potent Philips Glow-lampworks of ...