such couplings
81Narrow gauge railway — Track gauge by size Broad gauge St …
82Plautus — For the Roman noble, see Rubellius Plautus. Plautus Born c. 254 BC Sarsina, Umbria Died 184 BC Rome …
83Great Western Railway — The Great Western Railway (GWR) was a British railway company and a notable example of civil engineering, linking London with the West Country, South West England and South Wales. It was founded in 1833, kept its identity through the 1923… …
84Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …
85Mass–energy equivalence — E=MC2 redirects here. For other uses, see E=MC2 (disambiguation). 4 meter tall sculpture of Einstein s 1905 E = mc2 formula at the 2006 Walk of Ideas, Berlin, Germany In physics, mass–energy equivalence is the concept that the …
86Wooden toy train — Wooden toy trains are a system of small toy trains that run on wooden track. The tracks feature grooves which serve to guide the wheels of rolling stock. Traditionally parts are made of hardwoods which resemble anthropomorphical, fictional, and… …
87electronic music — electronically produced sounds recorded on tape and arranged by the composer to form a musical composition. [1930 35] * * * Any music involving electronic processing (e.g., recording and editing on tape) and whose reproduction involves the use of …
88Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
89TGV — The TGV ( train à grande vitesse , French for high speed train ) is France s high speed rail service developed by GEC Alsthom (now Alstom) and SNCF, the French national rail operator, and operated primarily by SNCF. Following the inaugural TGV… …
90Mini — For the Mini marque, see Mini (marque). For other uses of Mini , see Mini (disambiguation). Mini Manufacturer BMC to MG Rover, and Innocenti …
