down-hill gradient
31river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
32Mountain Railways of India — Mountain Railways of India * UNESCO World Heritage Site …
33Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …
34Meon Valley Railway — [v · d · …
35Decompression (diving) — Divers decompressing in the water at the end of a dive Decompression in the context of diving derives from the reduction in ambient pressure experienced by the diver during the ascent at the end of a dive or hyperbaric exposure and refers to both …
36SEPTA Regional Rail — Infobox SG rail railroad name=SEPTA Regional Rail logo filename=SEPTA.svg system map size=300 map caption=SEPTA Regional Rail system map logo size=100 old gauge=RailGauge|sg marks=SPAX locale=Delaware Valley start year=1983 end year=present hq… …
37climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
38Dynamic programming — For the programming paradigm, see Dynamic programming language. In mathematics and computer science, dynamic programming is a method for solving complex problems by breaking them down into simpler subproblems. It is applicable to problems… …
39A38 road — A38 road …
40List 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,… …
