mercury-arc tube
71Inventions in medieval Islam — A significant number of inventions were developed in the medieval Islamic world, a geopolitical region that has at various times extended from Al Andalus and Africa in the west to the Indian subcontinent and Malay Archipelago in the east.… …
72Cyclisme Sur Route — Fédération internationale UCI (depuis 1900) Sport olympique depuis 1896 à Athènes, en Grèce …
73Cyclisme sur route — Fédération internationale UCI (depuis 1900) Sport olympique depuis 1896 à Athènes, en Grèc …
74nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… …
75Nanotube nanomotor — A device generating linear or rotational motion using carbon nanotube(s) as the primary component, is termed a nanotube nanomotor. Nature already has some of the most efficient and powerful kinds of nanomotors. Some of these natural biological… …
76Noble gas — Group 18 Period 1 2 He 2 …
77NASA Ames Research Center — (ARC) is a NASA facility located at Moffett Federal Airfield, which covers 43 acres at the borders of the cities of Mountain View and Sunnyvale in California. This research center is most commonly called NASA Ames. The current NASA Ames Center… …
78Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
79Electrical ballast — Choke ballast (inductor) used in older lighting. This example is from a tanning bed. Requires a lamp starter (below) and capacitor …
80Lighting — Not to be confused with lightning. For other uses, see lighting (disambiguation). Low intensity lighting and haze in a concert hall allows laser effects to be visible …
