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 ...
MESSRS. Philips Lamps, Ltd., are introducing a new lamp which has an efficiency of about eight times that of a gas-filled lamp taking the same power. A description of the lamp is given in the ...
Keeping an eye out around Tempe will get a bit easier once 2,000 streetlights are replaced with energy-efficient lamps this month. Tempe City Council approved more than $800,000 in federal stimulus ...
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