An aqueduct is a water supply or navigable channel Some canals are part of an existing waterway. This is usually where a river has been canalised: making it navigable by widening and deepening some parts , and providing locks with "cuts" around the weirs or other difficult sections. In France, these waterways are called lateral canals and in the UK they are generally called navigations, (conduit) constructed to convey water. In modern engineering, the term is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose.[1] In a more restricted use, aqueduct (occasionally water bridge) applies to any bridge A bridge is a structure built to span a valley, road, body of water, or other physical obstacle, for the purpose of providing passage over the obstacle. Designs of bridges vary depending on the function of the bridge and the nature of the terrain where the bridge is constructed or viaduct A viaduct is a bridge composed of several small spans. The term viaduct is derived from the Latin via for road and ducere to lead something. However, the Ancient Romans did not use that term per se; it is a modern derivation from an analogy with aqueduct. Like the Roman aqueducts, many early viaducts comprised a series of arches of roughly equal that transports water—instead of a path, road or railway—across a gap. Large navigable aqueducts Navigable aqueducts are bridge structures which carry canals over other rivers, valleys or railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of water than most water-supply aqueducts. Although Roman aqueducts were sometimes used for transport, aqueducts were not generally used until the 17th century are used as transport links for boats A boat is a watercraft of modest size designed to float or plane, to provide passage across water. Usually this water will be inland or in protected coastal areas. However, boats such as the whaleboat were designed to be operated from a ship in an offshore environment. In naval terms, a boat is something small enough to be carried aboard another or ships A ship ( Audio (help·info)) is a large vessel that floats on water. Ships are generally distinguished from boats based on size and cargo or passenger capacity. In traditional terms, ships were considered to be vessels which had at least one continuous water-tight deck extending from bow to stern. However, some modern designs for ships, and boats,. Aqueducts must span a crossing at the same level as the watercourses on each side. The word is derived from the Latin Latin is an Italic language originally spoken in Latium and Ancient Rome. With the Roman conquest, Latin was spread to countries around the Mediterranean, including a large part of Europe. Romance languages such as Aragonese, Corsican, Catalan, French, Italian, Portuguese, Romanian, Sardinian, Spanish and others, are descended from Latin, while aqua ("water") and ducere ("to lead").
Contents |
Evening Leader
The year 2009 has been a momentous one in the history of Pontcysyllte Aqueduct which was granted World Heritage Status in June. In gaining the prestigious ...
