ease of ignition
71flight, history of — ▪ aviation Introduction development of heavier than air flying machines. Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building… …
72motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
73List of Gurren Lagann mecha — Gunmen (ガンメン, Ganmen?) are the main type of mecha used in the anime series Tengen Toppa Gurren Lagann. The name itself means face/facade (顔面 ガンメン Face Surface); unsurprisingly, the mecha themselves are centered around faces and as such are very… …
74Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …
75Paisley — PAISLEY, a burgh, market town, and ancient parish, in the Upper ward of the county of Renfrew, of which it is the principal place, and the seat of a wide manufacturing district, 7½ miles (W. by S.) from Glasgow, and 50 (W. by S.) from… …
76Active Directory — (AD) is a directory service created by Microsoft for Windows domain networks. It is included in most Windows Server operating systems. Server computers on which Active Directory is running are called domain controllers. Active Directory serves as …
77Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …
78Friction — For other uses, see Friction (disambiguation). Classical mechanics …
79Internet Explorer — Windows Internet Explorer A component of Microsoft Windows Internet Explorer 9 in Wi …
80Microsoft Windows — Windows redirects here. For the part of a building, see Window. For other uses, see Windows (disambiguation). Microsoft Windows …
