Mode of transport
Cargo ships number and cargo transported updated from 2007 to 2025 data
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In the 1800s, the first [[steamboat]]s were developed, using a [[steam engine]] to drive a [[paddle wheel]] or propeller to move the ship. The steam was produced using wood or coal. Now, most ships have an engine using a slightly refined type of petroleum called [[bunker fuel]]. Some ships, such as [[submarine]]s, use nuclear power to produce the steam. Recreational or educational craft still use wind power, while some smaller craft use [[internal combustion engine]]s to drive one or more propellers, or in the case of jet boats, an inboard water jet. In shallow draft areas, [[hovercraft]] are propelled by large pusher-prop fans. |
In the 1800s, the first [[steamboat]]s were developed, using a [[steam engine]] to drive a [[paddle wheel]] or propeller to move the ship. The steam was produced using wood or coal. Now, most ships have an engine using a slightly refined type of petroleum called [[bunker fuel]]. Some ships, such as [[submarine]]s, use nuclear power to produce the steam. Recreational or educational craft still use wind power, while some smaller craft use [[internal combustion engine]]s to drive one or more propellers, or in the case of jet boats, an inboard water jet. In shallow draft areas, [[hovercraft]] are propelled by large pusher-prop fans. |
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Although slow, modern sea transport is a highly effective method of transporting large quantities of non-perishable goods. Commercial vessels, |
Although slow, modern sea transport is a highly effective method of transporting large quantities of non-perishable goods. Commercial vessels, around 80,000 in number, carried 12.8 billion tons of cargo in 2025. Transport by water is significantly less costly than air transport for transcontinental [[shipping]];Stopford, 1997: 4–6 [[short sea shipping]] and ferries remain viable in coastal areas.Stopford, 1997: 8–9Cooper ''et al.'', 1998: 280 |
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==Other modes== |
==Other modes== |
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