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77:. Water should be moved in and out from the ballast tank to balance the ship. In a vessel that travels on the water, the ballast will be kept below the water level, to counteract the effects of weight above the water level. The ballast may be redistributed in the vessel or disposed of altogether to change its effects on the movement of the vessel.
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In the fifteenth and sixteenth century, the ballast "did not consist entirely of leakage, but of urine, vomit, and various foul food leavings that lazy sailors discharged into the ballast contrary to orders, in the belief that the pumps would take care of it." In the nineteenth century, cargo boats
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to alter its performance. In most racing series, cars have a minimum allowable weight. Often, the actual weight of the car is lower, so ballast is used to bring it up to the minimum. The advantage is that the ballast can be positioned to affect the car's handling by changing its
272:. If a sailing vessel should need to voyage without cargo then ballast of little or no value would be loaded to keep the vessel upright. Some or all of this ballast would then be discarded when cargo was loaded.
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ships returning from Great
Britain to the United States used rubble as ballast. The ballast would be dumped in New York and used for construction projects such as
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returning from Europe to North
America would carry quarried stone as ballast, contributing to the architectural heritage of some east coast cities (for example
293:. It is also common in other racing series that ballast may only be located in certain positions on the car. In some racing series, for example the
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268:. Insufficiently ballasted boats will tend to tip, or heel, excessively in high winds. Too much heel may result in the boat
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comprises blocks of heavy material, usually lead, used to compensate for excess buoyancy of the diver and their equipment.
297:, ballast is used as a handicap, the leading drivers at the end of one race being given more ballast for the next race.
241:, weights added to maximise the average speed in cross-country competition, especially when thermal convection is strong
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it may be used to increase speed and/or adjust the aircraft's center of gravity, or in a balloon as a
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97:. The concept has been invented and reinvented many times by humans to serve a variety of purposes.
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The basic concept behind the ballast tank can be seen in many forms of aquatic life, such as the
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and an outcrop colloquially named
Bristol Basin since it was made from rubble from bombed-out
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Railway
Maintenance Equipment: The Men and Machines that Keep the Railroads Running
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Spons' dictionary of engineering, civil, mechanical, military, and Naval
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to resist the overturning moment generated by lateral forces on the
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to provide stability to a vehicle or structure. Ballast, other than
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Material that is used to provide stability to a vehicle or structure
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Cross section of a vessel with a single ballast tank at the bottom
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Edward Spon; Oliver Byrne; Ernest Spon; Francis N. Spon (1874).
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Ballast may also be carried aboard an aircraft. For example, in
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One of the functions of a yacht's keel is to provide ballast.
386:"How Bomb Debris from Bristol, England, Made a Road in NYC"
73:, or other floating structure that holds water is called a
362:. U.S.A.: Oxford University Press. p. 135.
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162:. Unsourced material may be challenged and
105:), where this stone was used in building.
182:Learn how and when to remove this message
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202:Ballast takes many forms, for example:
49:, may be placed in a vehicle, often a
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160:adding citations to reliable sources
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360:The European Discovery of America
295:British Touring Car Championship
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358:Morison, Samuel Eliot (1971).
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384:Mats Burström (2018-03-13).
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244:in a balloon, as part of a
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418:. MBI Publishing Company.
345:blogs.discovermagazine.com
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443:Mechanisms (engineering)
21:Ballast (disambiguation)
414:Solomon, Brian (2001).
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172:April 2021
395:28 August
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291:Formula 1
270:capsizing
258:sailboats
143:does not
114:FDR Drive
93:group of
71:submarine
67:stability
282:race car
103:Montreal
91:argonaut
87:blowfish
448:Weights
408:Sources
302:gliding
239:gliding
164:removed
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118:Bristol
108:During
95:octopus
81:History
63:airship
59:balloon
55:gondola
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