coupling service factor
41Steam locomotive — A steam locomotive is a locomotive powered by steam. The term usually refers to its use on railways, but can also refer to a road locomotive such as a traction engine or steamroller.Steam locomotives dominated rail traction from the mid 19th… …
42Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …
43Список награждённых Национальной медалью науки США — Джошуа Ледерберг (справа) получает Национальную медаль науки из рук Президента США Джорджа Буша старшего Список …
44Snowdon Mountain Railway — Rheilffordd yr Wyddfa Half way up the Mountain Overview …
45bone — /bohn/, n., v., boned, boning, adv. n. 1. Anat., Zool. a. one of the structures composing the skeleton of a vertebrate. b. the hard connective tissue forming the substance of the skeleton of most vertebrates, composed of a collagen rich organic… …
46Tractive force — As used in mechanical engineering, the term tractive force is the pulling or pushing force exerted by a vehicle on another vehicle or object. The term tractive effort is synonymous with tractive force, and is often used in railway engineering to… …
47Parallel ATA — ATA connector on the right, with two motherboard ATA sockets on the left. Type …
48Modem — For other uses, see Modem (disambiguation). A modem (modulator demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The… …
49Common Agricultural Policy — European Union This article is part of the series: Politics and government of the European Union …
50British Railways Mark 1 — Infobox DMU name = British Railways Mark 1 imagesize = 300px background = #0033cc caption = Corridor Third (TK) M24018 at Derby, 1951 Manufacturer = Operator = British Rail Formation = Built = LinesServed = InService = 1951 CarLength = CarWidth …
