steering alignment
71Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …
72Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
73Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
74SR-71 Blackbird — infobox Aircraft name = SR 71 Blackbird caption =An SR 71B Trainer over the Sierra Nevada Mountains of California in 1994. Note second cockpit is raised for the instructor. type = Strategic Reconnaissance manufacturer = Lockheed Skunk Works… …
75Vehicle Identification Number — VIN redirects here. For other uses, see Vin (disambiguation). VINs redirects here. For the non profit organization, see VINS. For the Russian Baptist pastor, see Vins. VIN on a Chinese moped A Vehicle Identification Number, commonly abbreviated… …
76Active optics — is a relatively new technology for reflecting telescopes developed in the 1980s, which has more recently enabled the construction of a generation of telescopes with 8 metre primary mirrors. Active optics works by actively adjusting the telescope… …
77MBDA Meteor — Meteor Type Beyond Visual Range Air to Air Missile Se …
78Road traffic safety — Sidewalks, curbs and traffic signals in Maryland, United States …
79ERCO Ercoupe — Infobox Aircraft name=ERCO Ercoupe type=Utility aircraft manufacturer=Engineering and Research Corporation caption= designer=Fred Weick first flight=1937 introduced= produced=1940 1970 retired= number built=5,685 status= unit cost=US$2,665 9,295… …
80STS-62 — Infobox Space mission mission name = STS 62 insignia = Sts 62 patch.png shuttle = Columbia launch pad = 39 B launch = March 4, 1994, 8:53:01 a.m. EST landing = March 18, 1994, 8:10:42 a.m. EST, KSC Runway 33 duration = 13 days, 23 hours, 16… …
