Since 1945, when the United States successfully tested the first atomic bomb in the state of Mexico, 2,475 nuclear bombs have been detonated worldwide, 85% of which came from two countries: the United States and the former Soviet Union. Despite thousands of cases**, only two atomic bombs were used on the battlefield, the two dropped on Hiroshima and Nagasaki. These bombs are less powerful than modern **. The atomic bomb dropped on Hiroshima was equivalent to the power of 15,000 tons of TNT, while the atomic bomb that fell on Nagasaki was equivalent to the power of 21,000 tons of TNT. However, the true power of nuclear ** is terrifying. In October 1961, the Soviet Union created the largest man-made ** in the history of mankind. They detonated a new Novaya Zemlya archipelago in the Arctic called"Tsar"The nuclear bomb produced a power of 50 million tons of TNT**, which is equivalent to the power of 3,333 Hiroshima atomic bombs. The bomb's shock wave, which circled the Earth three times, nearly destroyed the mission plane that dropped the bomb and shattered window panes as far away as Norway and Finland. Although it was never tested, the USSR planned to make a ratio"Tsar"A bomb with twice the power can produce 100 million tons of TNT, which is equivalent to the simultaneous detonation of 6,666 Nagasaki atomic bombs.
At present, the world's largest nuclear bomb is the B83 from the U.S. military arsenal, which has the power of 1.2 million tons of TNT, which is equivalent to 80 times that of the Hiroshima nuclear bomb. The most powerful nuclear bomb ever tested by the U.S. military is equivalent to 15 million tons of TNT**, about 1,000 times that of the Hiroshima nuclear bomb. In the early days, nuclear bombs were mainly detonated by touching the ground, the most typical example being the encounters between Hiroshima and Nagasaki in Japan. At that time, the houses in these cities were mostly wooden and had low floor heights, which led to the destruction of the entire city. Modern cities, however, are filled with reinforced concrete skyscrapers, which are dense, high-strength structures that can greatly reduce the shock wave of a nuclear bomb. However, this is not a happy thing. Modern nuclear bombs are usually mounted on missiles or even intercontinental missiles, and they are equipped with powerful guidance systems and accurate timed detonator tactical missiles. The nuclear missile can accurately reach a kilometer above the designated city and automatically detonate it by maneuvering, changing orbit, flying at an ultra-low altitude, etc. Unlike earlier touchdown detonations, this method increases the power of the blast by preventing it from hitting buildings in a straight line.
In addition, the shock wave caused by a nuclear air explosion is not only a strong wind, but also a static overpressure, high pressure, and a rapid pull of a vacuum, which will repeatedly act on the building over a long period of time, causing the load-bearing structure of the building to loosen. The ensuing wind will destroy the center, and it is unlikely that anyone will survive within the coverage of the shock wave. However, the most dangerous lethality of a nuclear bomb is not in the shock wave, but in the radiation cloud. Shock waves decay very quickly as a fluid, and their range of influence is very limited. After a nuclear explosion, the vacuum in the center will absorb a large amount of dust and soil, and along with the nuclear explosion waste, it will evaporate and rise into a radioactive cloud. The subsequent fallout will result in deadly high levels of radiation that can last for months or even years. All organisms in the area covered by the radiation cloud will be destroyed by large amounts of nuclear radiation, and even if they survive, they will not be unharmed. The destructive power of nuclear ** is not only capable of destroying a city's infrastructure, such as transportation, electricity and water supply systems, but also triggering high temperatures and intense thermal radiation that can lead to an entire city**. The fire would engulf everything in the city, and the continued heat and long-term radiation would make it difficult for people hiding in underground fortifications to survive. Therefore, the only hope for survival is to stay away from the nuclear explosion.
At present, the world still has a large number of nuclear weapons**. It is estimated that there are about 15,600 cores** worldwide, enough to destroy the planet dozens of times. However, only nine countries actually possess nuclear weapons, 92% of which are in the hands of the United States and Russia, while the remaining 8% are controlled by France, China, the United Kingdom, Pakistan, India, Israel and North Korea, respectively. In order to halt nuclear proliferation and promote nuclear disarmament, the global Treaty on the Non-Proliferation of Nuclear Weapons** was signed on 1 July 1968. The objective of the Treaty is to promote the peaceful uses of nuclear energy and promote international cooperation while preventing nuclear proliferation. As of January 2003, 186 States had become parties to the Treaty. Although the treaty was initially motivated by concerns about the nuclear monopoly of the great powers, with the deepening of nuclear awareness, almost everyone around the world now supports efforts to prevent nuclear proliferation. China decided to accede to the Treaty on 28 December 1991, which entered into force on 9 March 1992. There is no doubt that the destructive power of nuclear ** is immeasurable, so no country will use nuclear ** lightly.