20 km from the Cape Verde Peninsula and 30 km from Dakar, capital of Senegal, is an amazing natural phenomenon — the Pink lake or Retba, as it is called representatives of the people Wolof, the main ethnic groups in the country. The size of a giant bowl with a bright pink water reaches up to 3 sq. km. the Maximum depth does not exceed 3 meters.
The name of the lake derives from the special color of the water, which ranges from light pink to brown. The reason for the unique color of the water is a large amount of cyanobacteria in the lake are ancient organisms that appeared on Earth 3.5 billion years ago. Surprisingly, except for them in this saturated salt solution no other organic life. The salt concentration in the lake Retba almost 1.5 times more than in the Dead sea – 380 grams per liter. Salt production takes place since 1970.
Now people extract the salt, standing to his neck in water, but 20 years ago the lake was moving without boats, the water level reached the belt. But because mining a huge amount of salt (about 25 thousand tons per year), the depth of the lake was rapidly increasing.
Every morning dozens of local men with the necessary equipment, floating in the middle of the lake and climb in very salty water. They break the salt deposits at the bottom Continue reading
Lovers to swim in Saint Petersburg it should be remembered that as a rule all the waters and rivers in connection with pollution are only used for relaxing on the beach.
Slightly better is the situation with deep glacial lakes in the Leningrad region, which are powered by pure underground springs. Some of these lakes are officially included in the list are suitable for swimming. With the onset of summer in the news will see the official information of the resolved places for bathing.
Since the places for swimming in St. Petersburg is not clean water, we will go to far from the city and clear lakes in the Leningrad region, where you can relax and swim.
— the Radon lake in the Lomonosov district, D. Lopukhinka.
The lake contains chemical element radon, which is why the water in the lake is incredibly clean and transparent, at the bottom there’s no vegetation, no plankton, no any other animals.
— Very clean lake Swinscoe in the Luga district.
Amazingly clean Swinscoe lake near the city of Luga of Leningrad region. Is recognized each year as suitable for bathing. There is a convenient sandy beach for everyone, and there is a popular children’s health complex “Luga”. The water Continue reading
Water element of the planet: lakes and rivers
It is considered that the main distinctive feature of the lake water from sea and ocean is the absence of the salt. However, this is a common misconception. Actually there are salt lakes. But the fact that the lake is not connected to the oceans — this is the main difference from the seas.
The lake is a big bowl filled with water.
The deepest lake on Earth — lake Baikal.
But in Algeria there is a lake, which is called Ink. It with water as ink, can write on paper. The fact is that in this lake flow two rivers, the composition of the water which is such that, when combined, they turn into a liquid similar to ink.
But in Russia, in the Chelyabinsk region, there is a lake, where the water is saturated with soda. In this water you can easily wash without soap — all the spots “away” by themselves.
In Sicily there is a very dangerous lake, which is called ” lake of Death. It is dangerous for plants and animals. On its banks grows nothing, and any creature caught in its waters, dies. The fact is that on the bottom beat two sources of sulfuric acid, which poisons the water.
Did you know that the Dead sea — Continue reading