level crossing with automatic light signal
71Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer. The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …
72United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
73Port Authority Trans-Hudson — Coordinates: 40°43′52.74″N 74°3′33.59″W / 40.7313167°N 74.0593306°W / 40.7313167; 74.0593306 …
74Viet Cong and PAVN battle tactics — Soldier of a NLF/Viet Cong Main Force Unit. They shared common arms, procedures, tactics, organization and personnel with PAVN. Viet Cong and PAVN battle tactics comprised a flexible mix of guerrilla and conventional warfare battle tactics used… …
75PATCO Speedline — Overview Type Rapid transit Locale Philadelphia, Pennsylvania and …
76environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
77List of rail accidents (pre-1950) — For a list of 1950 1999 rail accidents, see List of 1950 1999 rail accidents.For a list of post 2000 rail accidents, see List of rail accidents. notoc Pre 1830 1815 * 1815, exact date unclear ndash; Philadelphia, Co Durham, England: 16 people,… …
78Spider-Man's powers and equipment — The fateful spider bite that gave Peter Parker his powers. Amazing Fantasy #15, art by Steve Ditko. Spider Man s powers, abilities, and equipment are used by Marvel Comics superhero Spider Man in tandem to combat his many foes. He receives most… …
79School bus — This article is about vehicles specifically designed and manufactured for carrying students to and from school. For information about school transportation in general, see student transport. School Bus Front 3/4 view of a typical North American… …
80RTLS communications — Articleissues essay=July 2008 copyedit=May 2008 refimprove=August 2008RTLS communications is a special breed of wireless communicating with the aim to support locating wireless nodes not only topologically, but merely topographically outdoors or… …
