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Whirlpool
A whirlpool is a body of rotating water produced by opposing currents or a current running into an obstacle. Small whirlpools form when a bath or a sink is draining. More powerful ones formed in seas or oceans may be called maelstroms ( ). ''Vortex'' is the proper term for a whirlpool that has a downdraft. In narrow ocean straits with fast flowing water, whirlpools are often caused by tides. Many stories tell of ships being sucked into a maelstrom, although only smaller craft are actually in danger. Smaller whirlpools appear at river rapids and can be observed downstream of artificial structures such as weirs and dams. Large cataracts, such as Niagara Falls, produce strong whirlpools. Notable whirlpools Saltstraumen Saltstraumen is a narrow strait located close to the Arctic Circle, south-east of the city of Bodø, Norway. It has one of the strongest tidal currents in the world. Whirlpools up to in diameter and in depth are formed when the current is at its strongest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corryvreckan
The Gulf of Corryvreckan (from the Gaelic ''Coire Bhreacain'', meaning 'cauldron of the speckled seas' or 'cauldron of the plaid'), also called the Strait of Corryvreckan, is a narrow strait between the islands of Jura and Scarba, in Argyll and Bute, off the west coast of mainland Scotland. It is possible for tourists to visit the site by way of boat trips from local harbours or sightseeing flights from Oban Airport. Topography Strong Atlantic currents and unusual underwater topography together produce a particularly intense tidal race in the Corryvreckan channel. As the flood tide enters the narrow area between the two islands it speeds up to and meets a variety of seabed features, including a deep hole and a rising pinnacle. These features combine to create whirlpools, standing waves and a variety of other surface effects. The Corryvreckan is the third largest whirlpool in the world, and is on the northern side of the gulf, surrounding a pyramid-shaped basalt pinnacle th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Corryvreckan
The Gulf of Corryvreckan (from the Gaelic ''Coire Bhreacain'', meaning 'cauldron of the speckled seas' or 'cauldron of the plaid'), also called the Strait of Corryvreckan, is a narrow strait between the islands of Jura and Scarba, in Argyll and Bute, off the west coast of mainland Scotland. It is possible for tourists to visit the site by way of boat trips from local harbours or sightseeing flights from Oban Airport. Topography Strong Atlantic currents and unusual underwater topography together produce a particularly intense tidal race in the Corryvreckan channel. As the flood tide enters the narrow area between the two islands it speeds up to and meets a variety of seabed features, including a deep hole and a rising pinnacle. These features combine to create whirlpools, standing waves and a variety of other surface effects. The Corryvreckan is the third largest whirlpool in the world, and is on the northern side of the gulf, surrounding a pyramid-shaped basalt pinnacle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vortex
In fluid dynamics, a vortex ( : vortices or vortexes) is a region in a fluid in which the flow revolves around an axis line, which may be straight or curved. Vortices form in stirred fluids, and may be observed in smoke rings, whirlpools in the wake of a boat, and the winds surrounding a tropical cyclone, tornado or dust devil. Vortices are a major component of turbulent flow. The distribution of velocity, vorticity (the curl of the flow velocity), as well as the concept of circulation are used to characterise vortices. In most vortices, the fluid flow velocity is greatest next to its axis and decreases in inverse proportion to the distance from the axis. In the absence of external forces, viscous friction within the fluid tends to organise the flow into a collection of irrotational vortices, possibly superimposed to larger-scale flows, including larger-scale vortices. Once formed, vortices can move, stretch, twist, and interact in complex ways. A moving vortex carrie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charybdis
Charybdis (; grc, Χάρυβδις, Khárybdis, ; la, Charybdis, ) is a sea monster in Greek mythology. She, with the sea monster Scylla, appears as a challenge to epic characters such as Odysseus, Jason, and Aeneas. Scholarship locates her in the Strait of Messina. The idiom " between Scylla and Charybdis" has come to mean being forced to choose between two similarly dangerous situations. Description The sea monster Charybdis was believed to live under a small rock on one side of a narrow channel. Opposite her was Scylla, another sea monster, that lived inside a much larger rock. The sides of the strait were within an arrow-shot of each other, and sailors attempting to avoid one of them would come in reach of the other. To be " between Scylla and Charybdis" therefore means to be presented with two opposite dangers, the task being to find a route that avoids both. Three times a day, Charybdis swallowed a huge amount of water, before belching it back out again, creating large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Descent Into The Maelström
"A Descent into the Maelström" is an 1841 short story by American writer Edgar Allan Poe. In the tale, a man recounts how he survived a shipwreck and a whirlpool. It has been grouped with Poe's tales of ratiocination and also labeled an early form of science fiction. Plot Inspired by the Moskstraumen, it is couched as a story within a story, a tale told at the summit of a mountain climb in Lofoten, Norway. The story is told by an old man who reveals that he only appears old—"You suppose me a ''very'' old man," he says, "but I am not. It took less than a single day to change these hairs from a jetty black to white, to weaken my limbs, and to unstring my nerves." The narrator, convinced by the power of the whirlpools he sees in the ocean beyond, is then told of the "old" man's fishing trip with his two brothers a few years ago. Driven by "the most terrible hurricane that ever came out of the heavens", their ship was caught in the vortex. One brother was pulled into the waves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saltstraumen Quiet
Saltstraumen is a small strait with one of the strongest tidal currents in the world. It is located in the municipality of Bodø in Nordland county, Norway. It is located about southeast of the town of Bodø. The narrow channel connects the outer Saltfjorden to the large Skjerstad Fjord between the islands of Straumøya and Knaplundsøya. The Saltstraumen Bridge on Norwegian County Road 17 crosses Saltstraumen. Current Saltstraumen has one of the strongest tidal currents in the world. Up to of seawater forces its way through a long and wide strait every six hours. Vortices known as whirlpools or maelstroms up to in diameter and in depth are formed when the current is at its strongest. At this point, one source claims that the tidal current can reach . Saltstraumen has existed for about two to three thousand years. Before that, the area was different due to post-glacial rebound. The current is created when the tide tries to fill Skjerstad Fjord. The height differenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scarba
Scarba ( gd, Sgarba) is an island, in Argyll and Bute, Scotland, just north of the much larger island of Jura. The island was owned by Richard Hill, 7th Baron Sandys, and has not been permanently inhabited since the 1960s. It is now covered in heather and used for grazing animals. Kilmory Lodge is used seasonally as a shooting lodge, the island having a flourishing herd of red deer. The island's name is from the Norse and may mean "sharp, stony, hilly terrain" or "cormorant island".Mac an Tàilleir (2003) p. 104 Description Scarba is not served by any public ferries, but access from Craobh Haven or Crinan Harbour is possible by arrangement with local boatmen. The rough summit ridge can be accessed from the harbour at the north end, from where a vehicle track leads up past Kilmory Lodge to a height of about 200 metres. After that, there are no paths or well defined routes, and the terrain becomes rough and boggy. The island rises steeply to a peak (Cruach Scarba) of . A cy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jura, Scotland
Jura ( ; gd, Diùra; sco, Jura) is an island in the Inner Hebrides of Scotland, adjacent to and northeast of Islay. With an area of , and 196 inhabitants recorded in the 2011 census, Jura is more sparsely populated than Islay, and is one of the least densely populated islands of Scotland: in a list of the islands of Scotland ranked by size, Jura comes eighth, whereas by population it comes 31st. The island is mountainous, bare and largely infertile, covered by extensive areas of blanket bog. The main settlement is the east coast village of Craighouse. The Jura distillery, producing Isle of Jura single malt whisky, is in the village, as is the island's rum distillery which opened in 2021. Craighouse also houses the island's shop, church, primary school, the Jura hotel and bar, a gallery, craft shop, tearoom and the community run petrol pumps. North of Craighouse are a number of other small settlements on or near the east coast: Keils, Knockrome, Ardfernal, Lagg, Tarbert, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moskenesøya
Moskenesøya (lit. ''Moskenes Island'') is an island at the southern end of the Lofoten archipelago in Nordland county, Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t .... The island is shared between Moskenes Municipality and Flakstad Municipality. The tidal whirlpool system known as Moskstraumen, one of the strongest in the world, is located between Moskenesôya's Lofoten Point and the island of Mosken. Geography The island consists of an agglomeration of glaciated hills with the highest peak being the Hermannsdalstinden mountain. It is elongated from southwest to northeast and it is about long and wide. It also has a very uneven shoreline. The island is connected to the nearby island of Flakstadøya by the Kåkern Bridge which is part of the European route E10 whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niagara Falls
Niagara Falls () is a group of three waterfalls at the southern end of Niagara Gorge, spanning the border between the province of Ontario in Canada and the state of New York in the United States. The largest of the three is Horseshoe Falls, which straddles the international border of the two countries. It is also known as the Canadian Falls. The smaller American Falls and Bridal Veil Falls lie within the United States. Bridal Veil Falls is separated from Horseshoe Falls by Goat Island and from American Falls by Luna Island, with both islands situated in New York. Formed by the Niagara River, which drains Lake Erie into Lake Ontario, the combined falls have the highest flow rate of any waterfall in North America that has a vertical drop of more than . During peak daytime tourist hours, more than of water goes over the crest of the falls every minute. Horseshoe Falls is the most powerful waterfall in North America, as measured by flow rate. Niagara Falls is famed for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfall
A waterfall is a point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several ways, but the most common method of formation is that a river courses over a top layer of resistant bedrock before falling on to softer rock, which erodes faster, leading to an increasingly high fall. Waterfalls have been studied for their impact on species living in and around them. Humans have had a distinct relationship with waterfalls for years, travelling to see them, exploring and naming them. They can present formidable barriers to navigation along rivers. Waterfalls are religious sites in many cultures. Since the 18th century they have received increased attention as tourist destinations, sources of hydropower, andparticularly since the mid-20th centuryas subjects of research. Definition and terminology A waterfall is general ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firth Of Lorne
The Firth of Lorn or Lorne ( gd, An Linne Latharnach) is the inlet of the sea between the south-east coast of the Isle of Mull and the mainland of Scotland. It includes a number of islands, and is noted for the variety of wildlife habitats that are found. In 2005, a large part of the Firth became a Special Area of Conservation. Geography and geology The firth extends from the junction of the Sound of Mull and the Lynn of Lorn in the north-east, in a south-westerly direction towards Colonsay. The narrower north-eastern part is the Inner Firth, and the wider south-western part is the Outer Firth. The firth takes its name from the historic province of Lorne on the adjacent mainland. The Firth of Lorn is a continuation of the Great Glen - the Great Glen Fault runs along the north-westerm side of the firth. A conspicuous feature of the coasts of the firth is the presence of rock platforms and raised cliffs. These can be seen on the coast of Mull, on the Island of Kerrera and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
