Science, asked by dkasmdelhi, 8 months ago

how a ship discovered? what was the history... answer fast ​

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Answered by lillu5
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A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying goods or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished from boats, based on size, shape, load capacity, and tradition. In the Age of Sail a "ship" was a sailing vessel defined by its sail plan of at least three square riged masts and a full bowsprit.

Ships have supported exploration, trade, warfare, migration, colonization, and science. After the 15th century, new crops that had come from and to the Americas via the European seafarers significantly contributed to the world population growth.[1] Ship transport is responsible for the largest portion of world commerce.

As of 2016, there were more than 49,000 merchant ships, totaling almost 1.8 billion dead weight tons. Of these 28% were oil tankers, 43% were bulk carriers, and 13% were container ships.

Ships are generally larger than boats, but there is no universally accepted distinction between the two. Ships generally can remain at sea for longer periods of time than boats.[3] A legal definition of ship from Indian case law is a vessel that carries goods by sea.[4] A common notion is that a ship can carry a boat, but not vice versa.[5] A US Navy rule of thumb is that ships heel towards the outside of a sharp turn, whereas boats heel towards the inside[6] because of the relative location of the center of mass versus the center of buoyancy.[7][8] American and British 19th century maritime law distinguished "vessels" from other craft; ships and boats fall in one legal category, whereas open boats and rafts are not considered vessels.[9]

In the Age of Sail, a full-rigged ship was a sailing vessel with at least three square-rigged masts and a full bowsprit; other types of vessel were also defined by their sailplan, e.g. barque, brigantine, etc.[10]

A number of large vessels are usually referred to as boats. Submarines are a prime example.[11] Other types of large vessel which are traditionally called boats are Great Lakes freighters, riverboats, and ferryboats.[9] Though large enough to carry their own boats and heavy cargoes, these vessels are designed for operation on inland or protected coastal waters.

In most maritime traditions ships have individual names, and modern ships may belong to a ship class often named after its first ship.

Pronouns

In the northern parts of Europe and America a ship is traditionally referred to with a female grammatical gender, represented in English with the pronoun "she", even if named after a man. This is not universal usage and some English language journalistic style guides advise using "it" as referring to ships with female pronouns can be seen as offensive and outdated.[citation needed][12][13] In many documents the ship name is introduced with a ship prefix being an abbreviation of the ship class, for example "MS" (motor ship) or "SV" (sailing vessel), making it easier to distinguish a ship name from other individual names in a text.Asian developments

Fijian voyaging outrigger boat with a crab claw sail

Egyptian sailing ship, c. 1422–1411 BC

A Phoenician ship carved on the face of a sarcophagus, c. 2nd century AD

One of the sailing trimarans depicted in Borobudur, c. 8th century AD

The first sea-going sailing ships were developed by the Austronesian peoples from what is now Southern China and Taiwan. Their invention of catamarans, outriggers, and crab claw sails enabled their ships to sail for vast distances in open ocean. It led to the Austronesian Expansion at around 3000 to 1500 BC. From Taiwan, they rapidly colonized the islands of Maritime Southeast Asia, then sailed further onwards to Micronesia, Island Melanesia, Polynesia, and Madagascar, eventually colonizing a territory spanning half the globe.[14][15][16]

Austronesian rigs were distinctive in that they had spars supporting both the upper and lower edges of the sails (and sometimes in between), in contrast to western rigs which only had a spar on the upper edge.[14][15][16] The sails were also made from woven leaves, usually from pandan plants.[17][18] These were complemented by paddlers, who usually positioned themselves on platforms on the outriggers in the larger boats.[15][19] Austronesian ships ranged in complexity from simple dugout canoes with outriggers or lashed together to large edge-pegged plank-built boats built around a keel made from a dugout canoe. Their designs were unique, evolving from ancient rafts to the characteristic double-hulled, single-outrigger, and double-outrigger designs of Austronesian ships.[16][19]

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