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51Downtown Ossining Historic District — U.S. National Register of Historic Places U.S. Historic district …
52Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
53Counting rods — Yang Hui (Pascal s) triangle, as depicted by Zhu Shijie in 1303, using rod numerals. Numeral systems by culture Hindu Arabic numerals Western Arabic (Hindu numerals) …
54Mars Express — CG image of Mars Express Operator ESA Mission type Orbiter + Lander Satellite of …
55US Airways — IATA US ICAO AWE Callsign CACTUS …
56Waterfront Development Corporation — The Waterfront Development Corporation (WDC) of Louisville, Kentucky is a non profit/stock corporation created by the Kentucky General Assembly in 1986.For many years before the Waterfront Development Corporation s founding in 1986 political… …
57History of video games — Part of a series on …
58Santa Barbara County, California — County of Santa Barbara   County   Seal …
59Texas Instruments TI-99/4A — Infobox computer Name = Texas Instruments TI 99/4A Photo = Caption = 1979 TI 99/4 with RF modulator, optional Speech Synthesizer, keyboard overlays, and a cartridge. Note orange shift keys. Type = Home computer Released = June, 1981 (99/4 in June …
60S3 Savage — Savage was a product line of PC graphics chipsets designed by S3. Graphics Processors avage 3DAt the 1998 E3 Expo S3 introduced the first Savage product, Savage3D. Compared to its ViRGE derived predecessor (Trio3D), Savage3D was a technological… …
