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Pontevedra Marina
The marina of Pontevedra (Pontevedra, Spain) is located at the mouth of the Lérez river in the ria de Pontevedra. Its nautical chart is 4162-HMI. It is managed by the Club Náutico, Nautical Club of Pontevedra, by concession of the public entity of the Ports of Galicia – South Zone. Location The marina is located in the heart of Pontevedra, on Avenida Uruguay, next to the seafront and very close to the Currents Bridge and the old town of Pontevedra, old town. History The Pontevedra Club Náutico, Nautical Club was founded in 1932 and had swimming, Personal watercraft, jet-skiing, sailing and water polo sections. Nowadays, only the canoeing and kayaking section remains. The building of the Nautical Club was built in 1992. This is a flood of the Lérez in 1987, caused by a deep squall, which triggered the project to build a marina, which the Pontevedra Navigation, nautical enthusiasts wanted to do. This flood caused the dragging of logs which damaged many boats anchored ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Currents Bridge
The Currents Bridge (''puente de las Corrientes'' in Spanish), is a tied-arch bridge that crosses the Lérez River in the city of Pontevedra, Spain. It was inaugurated in 2012 and connects Uruguay Avenue and Domingo Fontán Street. History The location of the bridge is known as ''The Currents'' ''(Las Corrientes)'', because this is where the waters of the Rons river meet those of the Lérez river and the ria of Pontevedra. Since 1989, the construction of a new bridge in this place of ''The Currents'' was planned to connect the two banks of the Lérez river. However, it was not until the beginning of the 21st century that this idea was taken up again to provide another exit from the city centre to the north and the beaches of the ria de Pontevedra and direct access to the Autopista AP-9, AP-9 motorway, In 2008, the city council organised an ideas competition to decide on the design of the new bridge. In the end, one of the proposals for an tied-arch bridge was chosen because it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Mouth
A river mouth is where a river flows into a larger body of water, such as another river, a lake/reservoir, a bay/gulf, a sea, or an ocean. At the river mouth, sediments are often deposited due to the slowing of the current reducing the carrying capacity of the water. The water from a river can enter the receiving body in a variety of different ways. The motion of a river is influenced by the relative density of the river compared to the receiving water, the rotation of the earth, and any ambient motion in the receiving water, such as tides or seiches. If the river water has a higher density than the surface of the receiving water, the river water will plunge below the surface. The river water will then either form an underflow or an interflow within the lake. However, if the river water is lighter than the receiving water, as is typically the case when fresh river water flows into the sea, the river water will float along the surface of the receiving water as an overflow. Alon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailing Ship
A sailing ship is a sea-going vessel that uses sails mounted on masts to harness the power of wind and propel the vessel. There is a variety of sail plans that propel sailing ships, employing square-rigged or fore-and-aft sails. Some ships carry square sails on each mast—the brig and full-rigged ship, said to be "ship-rigged" when there are three or more masts. Others carry only fore-and-aft sails on each mast, for instance some schooners. Still others employ a combination of square and fore-and-aft sails, including the barque, barquentine, and brigantine. Early sailing ships were used for river and coastal waters in Ancient Egypt and the Mediterranean. The Austronesian peoples developed maritime technologies that included the fore-and-aft crab-claw sail and with catamaran and outrigger hull configurations, which enabled the Austronesian expansion into the islands of the Indo-Pacific. This expansion originated in Taiwan BC and propagated through Island Southeast Asia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can be used for any given locale to find the predicted times and amplitude (or "tidal range"). The predictions are influenced by many factors including the alignment of the Sun and Moon, the phase and amplitude of the tide (pattern of tides in the deep ocean), the amphidromic systems of the oceans, and the shape of the coastline and near-shore bathymetry (see '' Timing''). They are however only predictions, the actual time and height of the tide is affected by wind and atmospheric pressure. Many shorelines experience semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude tides a day—is a third regular category. Tides va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crane (machine)
A crane is a type of machine, generally equipped with a hoist rope, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally. It is mainly used for lifting heavy objects and transporting them to other places. The device uses one or more simple machines to create mechanical advantage and thus move loads beyond the normal capability of a human. Cranes are commonly employed in transportation for the loading and unloading of freight, in construction for the movement of materials, and in manufacturing for the assembling of heavy equipment. The first known crane machine was the shaduf, a water-lifting device that was invented in ancient Mesopotamia (modern Iraq) and then appeared in ancient Egyptian technology. Construction cranes later appeared in ancient Greece, where they were powered by men or animals (such as donkeys), and used for the construction of buildings. Larger cranes were later developed in the Roman Empire, e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline
Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. On average, U.S. refineries produce, from a barrel of crude oil, about 19 to 20 gallons of gasoline; 11 to 13 gallons of distillate fuel (most of which is sold as diesel fuel); and 3 to 4 gallons of jet fuel. The product ratio depends on the processing in an oil refinery and the crude oil assay. A barrel of oil is defined as holding 42 US gallons, which is about 159 liters or 35 imperial gallons. The characteristic of a particular gasoline blend to resist igniting too early (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating, which is produced in several grades. Tetraethyl lead and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Fuel
Diesel fuel , also called diesel oil, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and then injection of fuel. Therefore, diesel fuel needs good compression ignition characteristics. The most common type of diesel fuel is a specific fractional distillate of petroleum fuel oil, but alternatives that are not derived from petroleum, such as biodiesel, biomass to liquid (BTL) or gas to liquid (GTL) diesel are increasingly being developed and adopted. To distinguish these types, petroleum-derived diesel is sometimes called petrodiesel in some academic circles. In many countries, diesel fuel is standardised. For example, in the European Union, the standard for diesel fuel is EN 590. Diesel fuel has many colloquial names; most commonly, it is simply referred to as ''diesel''. In the United Kingdom, diesel fuel for on-road use is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yacht Club
A yacht club is a sports club specifically related to yachting. Description Yacht clubs are mostly located by the sea, although there some that have been established at a lake or riverside locations. Yacht or sailing clubs have either a marina or a delimited section of the beach or shoreline with buoys marking the areas off-limits for swimmers as well as safe offshore anchorages. On shore they also include a perimeter reserved for the exclusive use of the members of the club as well as a clubhouse with attached Bar (counter), bar, café or restaurant where members socialize in a pleasant and informal setting. Although the terms ''Yacht Club'' and ''Sailing Club'' tend to be synonymous, some general differences regarding the recreational use of boating, boats can be broadly outlined. Historically a ''Yacht Club'' tended to focus on a membership composed of yacht owners, including motorboats. This type of club often was extremely exclusive, attracting the aristocracy or the hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchorage (maritime)
An anchorage is a location at sea where ships can lower anchors. Anchorages are where anchors are lowered and utilised, whereas moorings usually are tethering to buoys or something similar. The locations usually have conditions for safe anchorage in protection from weather conditions, and other hazards. The purpose of resting a ship at sea securely can be for waiting to enter ports, as well as taking on cargo or passengers where insufficient port facilities exist. Some coastlines without port facilities have extensive anchorage locations. In the days of large-scale sailing ship operations, a ship could wait at an anchorage for the wind to change, allowing it to continue its journey. The mooring of large ships in locations with adequate conditions for secure berthing is an engineering task requiring considerable technical skill. History See also * Roadstead * Sea anchor A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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