An atomic bomb can blow up a city. How powerful can a global nuclear weapon explode together?

If some nuclear weapons around the world explode together, it is estimated that no life in the world can escape the radiation of nuclear weapons. Nuclear weapons are world-class heavy weapons. Very destructive. So far, except for the two atomic bombs dropped on Hiroshima and Nagasaki, no country dares to drop and use nuclear weapons at will. Because nuclear weapon is an uncontrollable weapon, it has great lethality. No one can know how much damage nuclear weapons will bring to the earth.

As a world-class weapon of destruction, nuclear bombs have great destructive power. It is the hidden strength of many countries. There is no need to threaten you and it will not be easily taken out. Nuclear bombs don't explode so easily. In nature, it needs 48 kilograms of uranium -235. Even with the help of neutron explosives, it takes at least 15KG, almost the size of a watermelon, for radioactive elements to react. The United States has the largest laser fusion device in the world, which can simulate the true reflection of nuclear explosion. If 1 g nuclear material is made into a small bullet in the future, the energy released is at least equivalent to 20 tons of TNT equivalent shelling, and a large pit with a diameter of 20 meters is completely blown out.

It is equivalent to 20,000 tons of TNT. To completely destroy a megacity like Tokyo, it takes an average of 8- 10 nuclear bombs with the equivalent of 200,000 tons of TNT, that is, 6.5438+10,000 such bullets to be razed to the ground. When the explosion happens, it will also produce nuclear electromagnetic pulse, which will destroy the surrounding electronic equipment. Strong light radiation burns objects and releases radioactive substances, causing great harm to human body.

Someone asked Einstein such a question: "What weapons will mankind use in the next world war?" Einstein was silent for a while, and then said simply, "I don't know what weapons will be used in the next world war, but after that, humans will fight with stones." It turns out that what Einstein wants to express is very simple, that is, nuclear weapons are terrible and can destroy all civilizations and modern cities.