This year marks the 100th anniversary of Edison's invention of the electric lamp, one of many heralded accomplishments that brought him lasting fame. For much of life Edison enjoyed a popular reputation as a laboratory genius who personified the spirit of scientific discovery. Was he really a scientist, or only an inventor? His participation in the Draper Expedition to the solar eclipse of 1878...

Electric Power data has the characteristics of strong real-time, fine granularity and high accuracy. It can more accurately reflect current industrial structure is suitable for monitoring high-quality economic development. In order to better play role power early warning, based on prosperity signal lamp method, combining principle mathematical probability warning index system electric construct...

This article uses the case of Oppel Electric Manufacturing Co. Ltd.—the most important Chinese manufacturer light bulbs before 1937—to explore early development electrical lamp industry. The first explores market for lamps 1920s and shows how was dominated by imports locally manufactured foreign firms. It then traces established in subsequently grew into a successful manufacturing business able...

powerful lamp. The discomforts arising i , neck for electric light close to the back of , an a period of half an hour or longei, e ^ be emergency operation, have to e realizedTTnsoital at When I visited Dr. Seagrave erested in Namkham in March 1935 I be?fyfLarabolic lamp an overhead cluster of lamps with P jn the shades which he had fitted foi 1 some operation theatre. Dr. Seagrave g< gbamo det...

Ron D. Katznelson and John Howells ABSTRACT We provide an anatomy of the influence of Edison’s incandescent lamp patent U.S. 223,898 on downstream development and show how subsequent inventor activity adjusts to the improved certainty provided by court decisions as to the boundaries of a patent’s claims. First, we show that court decisions upholding Edison’s patent generated a surge of patent f...