gravity incline
41coast — [kōst] n. [ME coste, coast < OFr, a rib, hill, shore, coast < L costa, a rib, side] 1. land alongside the sea; seashore 2. Obs. frontier; borderland ☆ 3. [< CdnFr, hillside, slope] an incline down which a slide is taken ☆ 4. a slide or… …
42Edge Hill railway station — Infobox UK station name = Edge Hill manager = Northern Rail locale = Edge Hill borough = Liverpool pte = Merseytravel zone = C1 code = EDG years = 1836 events = Opened platforms = 4 lowusage0405 = 22,948 lowusage0506 = 34,097 lowusage0607 =… …
43Dolgarrog — is a small village in the Conwy County Borough in North Wales situated between Llanrwst and Conwy, very close to the Conwy River. The village is well known for its industrial history since the 18th century and the Eigiau dam disaster, which… …
44mineral processing — or ore dressing Mechanical treatment of crude ores to separate the valuable minerals. Mineral processing was at first applied only to ores of precious metals but later came to be used to recover other metals and nonmetallic minerals. It is also… …
45Vacuum sewer — Vacuum sewers were first installed in Europe in 1882 but until the last 30 years it had been relegated to a niche market. The first who has applied the negative pressure drainage (so called vacuum sewerage) was the Dutch engineer Liernur in the… …
46Paintball marker — A paintball marker, also known as a paintball gun, is the central or main piece of equipment in the sport of paintball. Markers make use of an expanding gas such as carbon dioxide, compressed air or nitrogen dioxide to propel paintballs through… …
47Narrow gauge slate railways in Wales — The slate industry of North Wales was the largest user of narrow gauge railways in the whole of the United Kingdom. Many of the quarries had internal tramways and feeder lines connecting them to transhipment points on local railways, rivers,… …
48Roller coaster — For other uses, see Roller coaster (disambiguation). The Scenic Railway at Luna Park, Melbourne, is the world s oldest continually operating rollercoaster, built in 1912 …
49roller coaster — 1. a small gravity railroad, esp. in an amusement park, having a train with open cars that moves along a high, sharply winding trestle built with steep inclines that produce sudden, speedy plunges for thrill seeking passengers. 2. a car or train… …
50Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century …
