crossing conditions
31Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
32tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
33airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
34Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… …
35Berlin Wall — For the chess opening variation, sometimes known as Berlin Wall, see Berlin Defence. View from the West Berlin side of graffiti art on the wall in 1986. The wall s infa …
36BKL singularity — A BKL (Belinsky Khalatnikov Lifshitz) singularityHarvnb|Belinsky|Khalatnikov|Lifshitz|1970] is a model of the dynamic evolution of the Universe near the initial singularity, described by a non symmetric, chaotic, vacuum solution to Einstein s… …
37Chesapeake Bay Bridge-Tunnel — Not to be confused with Chesapeake Bay Bridge. Chesapeake Bay Bridge Tunnel Coming down from the high level portion near the north end. Official name Lucius J. Kellam Jr. Bridge Tunnel Carries …
38The Queen's Own Cameron Highlanders of Canada — Infobox Military Unit unit name= The Queen s Own Cameron Highlanders of Canada caption=Cap badge of the Camerons of C dates= 1 February 1910 Present country= Canada allegiance= branch= Militia type= Line Infantry role= Light Role size= One… …
39transportation — /trans peuhr tay sheuhn/, n. 1. the act of transporting. 2. the state of being transported. 3. the means of transport or conveyance. 4. the business of conveying people, goods, etc. 5. price of travel or transport by public conveyance; fare. 6.… …
40Ontario Highway 401 — Highway 401 redirects here. For other uses, see List of highways numbered 401 …
