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groc


Miembro Pro, Barcelona, Catalunya

On the Bosphorus shore

6 d'abril de 2007 a les 11:00h
Canon EOS 300D Objectiu Canon EF 70-300mm f/4.6-5.6 DO IS USM
1/250 f/4.4 ISO100 DF70mm

Ortaköy Camii, Istanbul

The Bosphorus or Bosporus, also known as the Istanbul Strait, is a strait that forms part of the boundary between Europe and Asia. It is one of the Turkish Straits, along with the Dardanelles. The world's narrowest strait used for international navigation, it connects the Black Sea with the Sea of Marmara (which is connected by the Dardanelles to the Aegean Sea, and thereby to the Mediterranean Sea). It is approximately 30 km (19 mi) long, with a maximum width of 3,700 m (12,139 ft) at the northern entrance, and a minimum width of 700 m (2,297 ft) and 750 m (2,461 ft) between Anadolu and Rumelihisar. The depth varies from 36 to 124 m (118 to 407 ft) in midstream. The shores of the strait are heavily populated as the city of Istanbul (with a metropolitan area in excess of 11 million inhabitants) straddles it.

The name comes from Greek Bosporos, which the ancient Greeks analysed as bous + poros: means of passing a river, ford, ferry, thus meaning 'ox-ford'. Although it has been known for a while that the Black Sea and the Sea of Marmara flow into each other in an example of a density flow, findings of a study by the University of Leeds in August 2010 reveal that there is in fact an underwater river flowing through the Mediterranean and under the Bosphorus caused by the difference in density of the two seas, which would be the sixth largest river on Earth if it were to be on land.

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