Public transport

Public transport, public transportation, public travel or mass transit comprises all transport systems in which the passengers do not tour in their own vehicles. While it is generally taken to include rail and bus services, wider definitions would comprise scheduled airline services, ship, taxicab services etc. – any system that transports members of the universal public. A further restriction that is sometimes practical is that it must take place in shared vehicles that would bar taxis that are not shared-ride taxis.

Cast iron

Cast iron usually refers to grey cast iron, but can mean any of a group of iron-based alloys containing more than 2% carbon. It is made by remelting pig iron, often along with substantial quantities of scrap iron and scrap steel, and taking various steps to remove undesirable contaminants such as phosphorus and sulfur. Carbon and silicon content are reduced to the desired levels, which may be anywhere from 2% to 3.5% for carbon and 1% to 3% for silicon depending on the application. Other elements are then added to the melt before the final form is produced by casting.
Iron is most commonly melted in a small blast furnace known as a cupola. After melting is complete, the molten iron is removed or ladled from the forehearth of the blast furnace. This process is thought to have been devised by the late 18th century ironmaster John Wilkinson, whose innovative ideas revolutionized the field of metallurgy. Previously, iron was melted in an air furnace, which is a type of reverberatory furnace.

People mover

A people mover or automated people mover is a completely automated, grade-separated transit system. The term is normally used only to describe systems serving relatively small areas such as airports, downtown districts or theme parks, but is sometimes useful to considerably more complex automated systems. The term does not involve any particular technology, and a people mover may use technologies such as monorail, duorail, automated guide way transit or maglev. Propulsion may engage conventional on-board electric motors, linear motors or cable traction.

A few complex APMs deploy fleets of small vehicles over a track network with off-line stations, and supply near non-stop service to passengers. These taxi-like systems are more frequently referred to as personal rapid transit. Other complex APMs have related characteristics to mass transit systems, and there is no clear cut difference between a complex APM of this type and an automated mass transit system.

ETA

Euskadi Ta Askatasuna or ETA is a Basque nationalist terrorist group founded in 1959. It evolved rapidly from a group advocating usual cultural ways to an armed group fighting for Basque self-government. Every formulation of ETA's goals have centered on sovereignty and self-determination for the Basque Country. ETA's motto is Bietan jarrai. This refers to the two figures in the ETA sign, a snake wrapped around an axe.

ETA is listed as a terrorist organization by the United Nations, European Union and the United States in their related watch lists. ETA has committed about 900 killings and dozens of kidnappings. More than 500 ETA militants are held in jail in Spain and France. On March 22, 2006 the association declared a "permanent ceasefire." After government rejection to agree any peace settlements, ETA broke the ceasefire with a car blast attack on December 30, 2006 at Barajas International Airport, Madrid killing two Ecuadorian immigrants.