In the late 17th century Peter the great, meaning “to be firmly on the Azov and Black seas”, has a boatload of “Fortress” to explore the shores of the Black sea. Sailors measured the depth and made sketches of the coastline. Thus was made the first Russian map of the Black sea. Although, according to historians, the geography of the Black sea was well known to the ancient Greeks. They laid here the trade routes and built beautiful cities.
The black sea is an inland sea, belonging to the basin of the Atlantic ocean. With the ocean this body of water through the channels sequentially connects the Marmara, Aegean and Mediterranean seas. Over the Atlantic, and originate those cyclones, which bring the black bad weather. Through the narrow Straits hindered the water exchange between the seas and so the tides on the black sea coast is virtually invisible. Only occur under the action of strong winds and wind-effected processes can raise or lower the water level 30 cm On the North-East of the shallow Kerch Strait links the Black sea with the sea of Azov.
The radiant variety of its shades from blue to emerald-blue sea in all languages of the world is called “black”. The sea on the map resemble an oval, stretching from West to East on the 1150 km and from North to South nearly 580 km Severskoe location between the extreme southern point of the Crimea and the Turkish coast, which are separated by only 228 km maximum depth of 2210 m. the sea Continue reading
Despite the fact that the man himself is a predator by nature,
in the ocean, there are many sea creatures
which pose a danger to humans
The most dangerous creatures pose a threat to humans ,
Sharks still pretty much in the ocean, and some sharks pose a deadly risk to humans.
First place, the danger room one 1: are Sharks.
Piranha. In second place, and in South America and perhaps in the first place
piranhas pose a high risk to humans.
One piranha can bite and even maim people
A school of Piranha can devour everything that is alive, a dog, a cow, a man has fallen into the water.
In South America hang these warning signs. Continue reading
One of the dangerous natural phenomena are often observed in the North-East of the Black sea and in the South-East of the Azov sea — tornadoes.
L. Z. according to PA . “…in most cases, the tornado is the most destructive phenomenon of nature”. They are quite frequent in many areas of the globe, particularly in Russia, Ukraine, Central Asia. In the U.S., for example, from tornadoes on land (they call them tornado) annual average of 113 people killed, and material losses amount to about 75 million dollars. According to others, the losses are even more significant . From 1916 to 1960 in the U.S. have 11503 tornado, from 1916 to 1950 died 7961 people, and the loss was $ 500 million. Statistics of losses in the USSR and the CIS, we could not be found. Probably not.
In the waters of the seas happen very dangerous spout. They occur near capes in shallow seas and at the boundaries of warm currents. It is believed that spout there are no more than 40 minutes; they have a diameter of 5-100 m. the Tornadoes on land are larger. The funnel of a tornado usually develops from a big rain clouds and resembles a twisted rope. She, however, may consist of a fresh water cloud, and to involve salt water. Inside the crater there is a strong downward movement of air at speeds up to 80 km/h. Continue reading