catenary suspension
11TGV world speed record — The TGV (train à grande vitesse, French for high speed train ) holds a series of world speed records achieved in the context of an active research and development program pursued by SNCF, the French national railway, and its industrial partners.… …
12Overhead lines — This article is about the transmission of electrical power to road and rail vehicles. For transmission of bulk electrical power to general consumers, see Electric power transmission. For powerlines mounted on pylons, see overhead power line.… …
13ARCH — The arch was invented around 2500 BC in the Indus Valley of ancient India. It is a curved structure that rests on posts or walls and allows for the spanning of an architectural space. Prior to the use of the arch, the post and lintel structure …
14Parabola — For other uses, see Parabola (disambiguation). A parabola …
15building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
16DBAG Class 128 — AEG/Adtranz/Bombardier 12X 128 001 in UNICEF special livery in 1996. Power type Electric Builder AEG Schienenfahrzeuge Serial number …
17Overhead power line — This article is about power lines for general transmission of electrical power. For overhead lines used to power road and rail vehicles, see Overhead lines. Transmission lines in Lund, Sweden …
18Accommodation (eye) — Accommodation is the process by which the increases optical power to maintain a clear image (focus) on an object as it draws near the eye. The young human eye can change focus from distance to 7 cm from the eye in 350 milliseconds. This dramatic… …
19Dual-mode vehicle — For other types of Hybrid Transportation , see Hybrid vehicle. See also Global Hybrid Cooperation for the General Motors/DaimlerChrysler/BMW hybrid vehicle technology often called Dual Mode A dual mode vehicle is a vehicle that can run on… …
20Structural engineering — is a field of engineering dealing with the analysis and design of structures that support or resist loads. Structural engineering is usually considered a speciality within civil engineering, but it can also be studied in its own right. [cite… …
