Reading tips, the "Dead Sea" of this article specifically refers to the inland salt lakes in the Jordan Rift Valley, which have the third highest salt content in the world and are located in the Great Rift Valley at the junction of Israel, Palestine and Jordan. Because there are three places on the earth similar to the Dead Sea: The Don Juan Pond in Antarctica, which has the second highest salt content, Gaet'ale Pond in Ethiopia, which has the highest salt content, and the Great British Dead Sea in China (the underground ancient salt lake in Daying County, Suining City, Sichuan Province, also known as the "Dead Sea of China").
The Dead Sea is the lowest lake in the world, with an altitude of only 430.5 meters, a length of 86 kilometers from north to south, a width of 5 to 16 kilometers from east to west, and a maximum depth of 380.29 meters. The West Bank is a Jewish mountainous region and the eastern coast is the Transjordan Plateau, a sunken crust sandwiched between two parallel geological fault cliffs. The Jordan River flows from the north, injecting 540 million cubic meters of water into the Dead Sea every year,
It is called the Dead Sea for three reasons.
First, from a physical point of view, the salt content of dead seawater is 8.6 times that of ordinary seawater, and the density of seawater is 1.17--1.227, while the density of human body is 1.02--1.097. The same person is subjected to buoyancy in the Dead Sea, and anyone who falls into the Dead Sea will be held up by the buoyancy generated by the sea. People can lie leisurely on the surface of the sea, drink a drink in one hand, look at the mobile phone with the other, and "go with the flow"! However, it is not fun to worry about the sea water splashing into the eyes, accidentally drinking a sip, the stomach will be uncomfortable for several days, the sea water wet the mobile phone, the mobile phone will be scrapped.
Second, from a biological point of view, the Dead Sea sea and lakeshore are rich in salt, high temperature, strong evaporation, such an environment, fish and other aquatic organisms are difficult to survive, the shore and the surrounding areas are not plant growth, let alone aquatic grass growth.
Third, in ancient times when science was not developed, there were many legends about the Dead Sea. In ancient times, there was a king who asked a minister to run an errand, but it was not done, and the king threw him into the sea many times without dying. Legend has it that the Dead Sea was originally a continent. The local inhabitants refused to repent of their evil deeds, and god, in order to punish them, turned the land into a dead sea, leaving them with neither water to drink nor water to grow their crops. About two thousand years ago, the Roman commander Didu ordered the execution of captive slaves. The slaves were thrown into the Dead Sea many times, but they were not drowned, and they were all sent back to the shore by the waves, and Didu was horrified, thinking that they were blessed by the gods, and ordered them all to be released, which is also the origin of the name of the Dead Sea.
The formation of the Dead Sea. Due to the continuous evaporation of the water flowing into the Dead Sea, the mineral concentration continues to increase. The maximum summer temperature in the Dead Sea zone can reach 51C°, and the evaporation is large. In addition, there is little dry and little rainfall, with an average annual rainfall of only 50 mm, while the evaporation is about 1400 mm.
The Dead Sea, in fact, is not "dead". Scientists in the United States and Israel have found through research that in the Dead Sea, there are still several bacteria and a kind of seaweed that survive. There is a microbe called "cassette salt-loving bacteria" that have a unique protein that protects against salt damage. In the early 1980s, it was found that a red salt fungus was rapidly growing in the seawater of the Dead Sea, which contained about 200 billion salt bacteria per cubic centimeter of seawater, and there was also a single-celled algae plant in the Dead Sea.
The Dead Sea is good for humanity. Often soaked in the Dead Sea, it can treat chronic diseases such as arthritis. The mineral-rich Black Clay of the Dead Sea has the special effect of fitness and beauty. As a result, thousands of people come from all over the world to the Dead Sea every year for recuperation.