The end of Shuileitun hexagrams

The result of Shuileitun divination is fierce. Everything goes wrong, there are many obstacles, and personal wealth has not improved. Only hard work can avoid falling into poverty.

Introduction of water

Water (chemical formula H2O) is an inorganic substance composed of two elements: hydrogen and oxygen. It is non-toxic and drinkable. At normal temperature and pressure, it is a colorless and odorless transparent liquid, which is called the source of human life and an important substance to maintain life, also called hydrogen oxide.

Water is one of the most common substances on the earth, and about 7 1% of the earth's surface is covered with water. It is an important resource for all life, including inorganic compounds and human beings, and it is also the most important component of organisms. Although its content in the air is small, it is an important part of the air.

Pure water has very weak conductivity and belongs to extremely weak electrolyte. Water in daily life has obvious conductivity because it dissolves other electrolytes and has more anions and cations. In September 2022, Chinese scientists discovered that there was a large amount of solar wind-induced water on the surface of Chang 'e-5 mineral.

According to an article in the journal Nature, scientists from the University of Mü nster, Germany, analyzed the isotopes of meteorites and mantle rocks in Lake Tagesh, British Columbia, Canada, and showed that water appeared on the earth much later than previously expected.

This largely refutes the view held by many scientists that "water was transformed from ice on the surface of meteorites during the formation of the earth". The origin and formation time of water on the earth determine the direction of the earth's evolution and the time of the origin of life. At present, there are two representative views on the source of water on the earth: "exogenous theory" and "endogenous theory"

However, scientists have found that the chemical composition of most comet water does not match the earth's water. In addition, the above-mentioned scientists from the University of Mü nster, Germany, believe that since meteorites have landed on the earth in the formation stage, they should leave corresponding chemical traces in the earth's mantle.

If water is really brought to the earth by meteorites at this stage, the isotope level in the mantle should be the same as that in meteorites. However, when they compared and analyzed the ruthenium isotopes in the meteorite in Lake Tagesh, British Columbia with those in the earth's mantle, they found that there was no similarity between them.