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Transport (in British English) or transportation (in American English) is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land (rail and road), water, cable, pipelines, and space. The field can be divided into infrastructure, vehicles, and operations.
In engineering, physics, and chemistry, the study of transport phenomena concerns the exchange of mass, energy, charge, momentum and angular momentum between observed and studied systems.
On the Move: A Visual Timeline of Transportation. Dorling Kindersley. ISBN 978-1-56458-880-7. Bruno, Leonard C. (1993). On the Move: A Chronology of Advances in Transportation. Gale Research. ISBN 978-0-8103-8396-8. Berger, Michael L. The automobile in American history and culture: a reference guide (Greenwood, 2001). Condit, Carl W.
Transportation Science is a bimonthly peer-reviewed academic journal published by the Institute for Operations Research and the Management Sciences (INFORMS). The studies published in the journal apply operations research techniques to problems in the full range of transportation sectors, including air travel, rail transport, commuter lines, and vehicular travel/traffic.
Saltation of sand. In geology, saltation (from Latin saltus 'leap, jump') is a specific type of particle transport by fluids such as wind or water.It occurs when loose materials are removed from a bed and carried by the fluid, before being transported back to the surface.
Because energy is required in this process, it is known as 'active' transport. Examples of active transport include the transportation of sodium out of the cell and potassium into the cell by the sodium-potassium pump. Active transport often takes place in the internal lining of the small intestine.
Water transportation is the slowest form of transportation in the movement of goods and people. Strategic chokepoints around the world have continued to play significant roles in maritime industry. Although the slowest form of transportation compared to road and rail transport, it is the most cost effective. [citation needed]
Sediment transport is the movement of solid particles (), typically due to a combination of gravity acting on the sediment, and the movement of the fluid in which the sediment is entrained.