Thursday, June 16, 2011

World Famous Bridge : Great Belt Bridge



The Great Belt Fixed Link  is the fixed link between the Danish islands of Zealand and Funen across theGreat Belt. It consists of a road suspension bridge and railway tunnel between Zealand and the island Sprogø, as well as a box girder bridge between Sprogø and Funen. The "Great Belt Bridge"  commonly refers to the suspension bridge, although it may also be used to mean the beam bridge or the link in its entirety. The suspension bridge, known as the East Bridge, has the world's third longest main span (1.6 km), and the longest outside of Asia. It was designed by the Danish architectural practice Dissing+Weitling.





The link replaces the ferry service which had been the primary means of crossing the Great Belt. After more than five decades of speculation and debate, the decision to construct the link was made in 1986;while the original intent was to complete the railway link three years before opening the road connection, the link was opened to rail traffic in 1997 and road traffic in 1998. At an estimated cost of DKK 21.4 billion (1988 prices), the link is the largest construction project in Danish history.
Operation & maintenance of the link is performed byA/S Storebælt under Sund & Bælt. Construction and maintenance are financed by tolls on vehicles and trains.
The link has reduced travel times significantly; previously taking about an hour by ferry, the Great Belt can now be crossed in about 10 minutes. The construction of the Great Belt Fixed Link and the Øresund Bridge have, together, enabled one to drive from mainland Europe to Sweden and the rest of Scandinavia through Denmark, providing an alternative to the significantly longer land route through Finland. Cyclists are not permitted to use the bridge. They have to catch a train or bus.

            

Friday, May 13, 2011

Deepest Sea : Caribbean Sea


The Caribbean Sea is a sea of the Atlantic Ocean situated in the tropics of the Western hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles, and to the east by the Lesser Antilles.
The entire area of the Caribbean Sea, the numerous islands of the West Indies, and adjacent coasts, are collectively known as the Caribbean. The Caribbean Sea is one of the largest salt water seas and has an area of about 2,754,000 km² (1,063,000 sq. mi.). The sea's deepest point is the Cayman Trough, between the Cayman Islands and Jamaica, at 7,686 m (25,220 ft) below sea level. The Caribbean coastline has many gulfs and bays: the Gulf of GonâveGulf of VenezuelaGulf of Darién,Golfo de los MosquitosGulf of Paria and Gulf of Honduras.
The name "Caribbean" is derived from the Caribs, one of the dominant American Indian groups in the region at the time of European contact during the late 15th century. After the discovery of the West Indies by Christopher Columbus in 1492, the Spanish term Antillas was assigned to the lands; stemming from this, "Sea of the Antilles" is a common alternative name for the Caribbean Sea in various European languages. During the first century of development, the Spanish dominance was undisputed.

Thursday, May 12, 2011

Deepest Ocean: Indian Ocean


The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian subcontinent; on the west by East Africa; on the east by Indochina, the Sunda Islands, and Australia; and on the south by the Southern Ocean (or, depending on definition, by Antarctica). The ocean is named after the geographic location called India.
As one component of the interconnected global ocean, the Indian Ocean is delineated from the Atlantic Ocean by the 20° east meridian running south from Cape Agulhas, and from the Pacific by the meridian of 146°55' east.The northernmost extent of the Indian Ocean is approximately 30° north in the Persian Gulf. The Indian Ocean has asymmetric ocean circulation[citation needed]. This ocean is nearly 10,000 kilometres (6,200 mi) wide at the southern tips of Africa and Australia; its area is 73,556,000 square kilometres (28,350,000 sq mi), including the Red Sea and the Persian Gulf.
The ocean's volume is estimated to be 292,131,000 cubic kilometres (70,086,000 mi3).Small islands dot the continental rims. Island nations within the ocean are Madagascar, the world's fourth largest island; Reunion Island;Comoros; Seychelles; Maldives; Mauritius; and Sri Lanka. The archipelago of Indonesia borders the ocean on the east.

Wednesday, May 11, 2011

Sea: Andaman Sea


The Andaman Sea or Burma Sea is a body of water to the southeast of the Bay of Bengal, south of Burma, west of Thailand and east of the Andaman Islands, India; it is part of the Indian Ocean.
The sea has been traditionally used for fishery and transportation of goods between the coastal countries and its coral reefs and islands are popular tourist destinations. The fishery and tourist infrastructure has been severely damaged by the 2004 Indian Ocean earthquake and tsunami.
The average depth of the sea is about 1,000 meters (3,300 ft). The northern and eastern parts are shallower than 180 meters (600 ft) due to the silt deposited by the Irrawaddy River. This major river flows into the sea from the north through Burma. The western and central areas are 900–3,000 meters deep (3,000–10,000 ft). Less than 5% of the sea is deeper than 3,000 meters (10,000 ft), and in a system of submarine valleys east of the Andaman-Nicobar Ridge, the depth exceeds 4,000 meters (13,200 ft). The sea floor is covered with pebbles, gravel and sand.


Tuesday, May 10, 2011

Ocean: Atlantic Ocean


The Atlantic Ocean is the second largest of the world's five oceans (after the Pacific Ocean, but larger than the Indian Ocean, Southern Ocean, and Arctic Ocean). The Kiel Canal (Germany), Oresund (Denmark-Sweden), Bosporus (Turkey), Strait of Gibraltar (Morocco-Spain), and the Saint Lawrence Seaway (Canada-US) are important strategic access waterways. The decision by the International Hydrographic Organization in the spring of 2000 to delimit a fifth world ocean, the Southern Ocean, removed the portion of the Atlantic Ocean south of 60 degrees south latitude.

The Atlantic Ocean is essentially an S-shaped north-south channel, extending from the Arctic Ocean in the north to the Antarctic continent in the south and situated between the eastern coast of the American continents and the western coasts of Europe and Africa. The Atlantic Ocean proper has a surface area of about 82 million sq km (about 31,660,000 sq mi). Including its marginal seas-the Gulf of Mexico-Caribbean Sea, the Arctic Ocean, and the North, Baltic, Mediterranean, and Black seas-the total area is about 106,190,000 sq km (about 41 million sq mi). 


Monday, May 9, 2011

Longest Coastline: Canada

Canada (play /ˈkænədə/) is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean. It is the world's second largest country by total area. Canada's common border with the United States to the south and northwest is the longest in the world.


The land that is now Canada was inhabited for millennia by various groups of Aboriginal peoples. Beginning in the late 15th century, British and French expeditions explored, and later settled, along the Atlantic coast. France ceded nearly all of its colonies in North America in 1763 after the Seven Years' War. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federaldominion of four provinces. This began an accretion of provinces and territories and a process of increasing autonomy from the United Kingdom. This widening autonomy was highlighted by the Statute of Westminster 1931 and culminated in the Canada Act 1982, which severed the vestiges of legal dependence on the British parliament.


Canada is a federal state that is governed as aparliamentary democracy and a constitutional monarchy with Queen Elizabeth II as its head of state. It is a bilingual nation with both English and French as official languages at the federal level. One of the world's highly developed countries, Canada has a diversified economy that is reliant upon its abundant natural resources and upon trade—particularly with the United States, with which Canada has had a long and complex relationship.


The coastline of Canada, including all its islands, is more than six times as long as the distance round the Earth at the Equator [40,076km]. Greenland is not in this list as it is part of Denmark, not a separate country, but its coastline measures 44,087km.



Source:http://en.wikipedia.org/wiki/Canada

Longest Glacier: Lambert Fisher

Fisher Glacier is a prominent western tributary to the Lambert Glacier, about 100 miles (160 km) long, flowing east past the north sides of Mount Menzies and Mount Rubin and joining the main stream of the Lambert Glacier just east of Mount Stinear. Sighted from ANARE (Australian National Antarctic Research Expeditions) aircraft by K.B. Mather in 1957. 


During the last Ice Age, more than 30 percent of the Earth's surface was covered by glaciers- frozen rivers of ice that move very slowly. Even today, as much as 10 percent is covered with glaciers. The Lambert Fisher Glacier is the longest in the world and was only discovered in 1956. The longest glacier in North America is the Hubbard Glacier, Alaska, which measures 146km. The longest in Europe is the Aletsch Glacier, Switzerland, at 35km.



Source:http://en.wikipedia.org/wiki/Fisher_Glacier