normal crossing
121Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
122Controlled-access highway — Freeway redirects here. For other meanings, see Freeway (disambiguation). A freeway with a wide grass median (Highway 402 in Canada) A controlled access highway is a highway designed exclusively for high speed vehicular traffic, with all traffic… …
123Disasters — ▪ 2009 Introduction Aviation January 23, Poland. A Spanish built CASA transport plane carrying members of the Polish air force home from a conference on flight safety in Warsaw crashes near the town of Miroslawiec; all 20 aboard are killed …
124Passing loop — Trains in a passing loop A passing loop (also called a passing siding, crossing loop, crossing place or, colloquially, a hole) is a place on a single line railway or tramway, often located at a station, where trains or trams in opposing… …
125Vehicular cycling — (also known as integrated cycling, integrated traffic cycling, cooperative cycling, and bicycle driving) is the practice of riding bicycles on roads in a manner that is visible, predictable, and in accordance with the principles for driving in… …
1261991 Pacific hurricane season — Infobox hurricane season Basin=EPac Year=1991 Track=1991 Pacific hurricane season map.png First storm formed=May 16, 1991 Last storm dissipated=November 12, 1991 Strongest storm name=Kevin Strongest storm winds=125 Strongest storm pressure=935… …
127North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …
128Mecanismos de aislamiento reproductivo — Los pinzones de Darwin son catorce especies de aves descubiertas por Charles Darwin en las islas Gal …
