Today’s news that “Germany will completely abandon its nuclear weapons in 2022” has attracted the attention of all nuclear powers. Regardless of the nuclear industry in the military, power generation and other fields, countries all over the world are scrambling to study and construct. Why did Germany, a major industrial country, suddenly announce its abandonment of nuclear power? Have you found a cleaner and safer raw material than nuclear energy? Or is it that the Germans discovered the shortcomings of nuclear energy, which caused them to give up nuclear energy?
German nuclear abandonment news report
The role of nuclear energy
The history of nuclear energy is only 70-80 years of history, and the main use is span 18 fusion and span 17 fusion _span 235 _span _span 235 . nuclear fusion can be applied to power generation reactors. During the nuclear fusion reaction, a large amount of heat energy is released. Seawater is used to cool the reactor. The water gets heat and then boils to drive the steam turbine to generate electricity. One kilogram of nuclear fuel can release the equivalent of 2500 tons of coal. Completely burn the heat, and will not produce a large amount of carbon dioxide to pollute the air.
Nuclear fission is uncontrollable. It is mainly applied to the military industry. For example, the atomic bomb uses the principles of heat, shock waves and harmful radioactivity generated in the process of nuclear fission. The atomic bomb turned Hiroshima into ashes, and there was no grass growing for decades.
Hiroshima, Japan after being hit by an atomic bomb
The hazards of nuclear energy
The Chernobyl nuclear plant was overheated and exploded during the maintenance process of the Chernobyl nuclear plant. The first batch of people without chemical protective clothing The firefighters began to feel unwell within 5 minutes after arriving at the scene to fight the fire, and even fainted. When they realized that they were wearing the chemical protective suit , it was too late. After the rescue, the firefighters who were sent to the hospital had ulcerated skin and foamed at the mouth.It requires amputation, and even some firefighters’ DNA is directly broken by harmful radiation. After the explosion, all residents within a 30-kilometer radius of Chernobyl were evacuated and turned into a dead city. In the few days after the explosion, radioactive dust drifted with the atmosphere to various European countries. In order to prevent the incident from injuring more people, the Soviet authorities immediately formed a death squad and used a helicopter to fly over the reactor. Throwing sand covering the reactor, some helicopters even crashed directly due to radiation interference. After a year of rescue, an arch-shaped concrete cover with a height of 104.5 meters and a width of 260 meters was built above the reactor. Only about 3 million tons were used to control the nuclear leak. One can imagine how terrible the explosion was.
The reactor was sealed with a cement cover
However, the 2011 earthquake caused the leakage of the Fukushima nuclear power plant to deal with it not very properly. The Japanese used a lot of sea to cool the reactor, resulting in a large amount of harmful seawater accumulating in the nuclear power plant, Japan It was announced this year that one million tons of nuclear waste water would be released to the Pacific Ocean in 2023! Aroused opposition from all over the world.
The scope of possible impact of nuclear wastewater
The source of nuclear raw materials
Currently, the world's detected reserves of uranium are about 4 million tons. However, the natural uranium-235 concentration is only 0.7%. If you want to use it to generate electricity, you must increase the concentration to 3%. Raising the concentration to 90% can be used as a raw material for nuclear weapons. Only a few countries in the world have mature technologies. The resources of uranium are unevenly distributed around the world, and the current exploration is mainly concentrated in small countries such as Canada, China, Australia, Russia, Uruguay , Brazil and Africa.
Distribution of uranium ore
There were nuclear reactors on the earth as early as 2 billion years ago?
Since human records, the first time a nuclear reactor was built and successfully generated electricity was in 1942, when mankind opened a new chapter in nuclear energy.But a discovery completely advanced this record by 2 billion years. In the 1970s, the French nuclear industry was at the forefront of the world. The French lacked raw uranium ore, so they went to Africa's Gabon to import. During an inspection, the French National Atomic Department found that the concentration of this batch of uranium ore rough was a little lower, only 0.7171%, generally around 0.72%. In the eyes of others, the difference between these data is very small, but this is a radioactive nuclear Raw materials, even a slight change may cause an accident. After investigation, the French found that the content of uranium 235 in Oklo, Gabon is very different, and the lowest content is as low as 0.45%, which is far lower than the content of natural uranium. Therefore, nuclear fission may have been carried out a long time ago. Not only that, after the experts have in-depth understanding of this mine, the content of uranium-235 in 16 places is only 0.3%. It was used 2 billion years ago!
Gabon’s Oklo Mine
At first, scientists thought that this might have been highly civilized 2 billion years ago, but no human structures have been found near the uranium mines in Oklo, Gabon. Signs of things. Scientists put their eyes on the ore. In order for uranium-235 to react under natural conditions, it must have a certain concentration to continuously release energy. Scientists have found that the half-life of uranium-235 is 700 million years, which means that it should be 2 billion years ago. The natural uranium concentration in the region has reached an astonishing 3.7%! What has happened to the earth in these 2 billion years? During this period, has there been a high degree of civilization that plundered the earth's resources back to their planet, leaving only some low-concentration rough stones that have been preserved until now and we have discovered them. It is still said that there was a global nuclear radiation event on the earth 2 billion years ago, which wiped out all living things. After the nuclear radiation was reduced, living things slowly appeared on the earth.
Evolutionary History of the Earth
The discovery of uranium ore in Oklo, Gabon, is likely to advance the history of mankind to 2 billion years ago, but there is not enough evidence to prove what happened on the earth, indeed It's very mysterious, and it keeps attracting scientists to explore. Like to remember to like + follow,Share Gonzo stories every day.
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