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 ...

During the early 1900s it was electric lighting that was the major driving force behind the growth of electrical supply and the electrical contracting industry. Contractors during the last 100 years ...

The Sodium Lamp market research report encourage businesses with the intelligent decision making & better manage marketing of goods which ultimately leads to growth & success. This market report ...

Proper outdoor lighting necessitates the use of "full cutoff" fixtures to minimize upward light emission and glare, thereby enhancing safety and security. Optimal outdoor lighting involves using the ...

AFTER a streetlight opposite his home stopped working, your columnist started noticing others on his California hillside that had also gone dark. Twice he reported the matter, to no avail. Then, after ...