Perhaps many people don't know one thing in the history of human wars in the past. Hiroshima, Japan is the only city in history that was attacked by atomic bombs. Of course, he was also the first place to be attacked by an atomic bomb. For the local Japanese, even though it has been a long time, they will never forget the great harm that this atomic bomb brought to their motherland.

1On August 6th, 945, American bombers launched an atomic bomb named Little Boy into the air of Hiroshima. At this moment, the atomic bomb exploded, and the whole Hiroshima suddenly fell from heaven to hell after the explosion. Tens of thousands of lives were all buried under the rubble.

According to common sense, the airdropped atomic bomb should not explode until it collides with the ground. In fact, the atomic bomb did explode in the sky. We may wonder why the atomic bomb didn't detonate on the ground. Isn't it worse after landing?

In fact, the height of this atomic bomb in the sky was accurately and scientifically calculated by the US military. At that time, the U.S. military set the height of this atomic bomb at 1800 feet from the ground, which is 500 meters in meters. And why did the US military choose to detonate the atomic bomb at this distance?

There are several reasons. The first reason is that he is closely related to the principle of atomic bomb detonation. As we all know, if an atomic bomb wants to have a huge and lasting explosive force, it mainly depends on internal nuclear fusion. The energy generated by this small atomic bomb is about 13000 tons when converted into high-energy explosives. Why does the atomic bomb produce so much energy?

This is because an impact force of more than ten times atmospheric pressure will be generated in the explosion center, and this impact force will gradually spread around. If an atomic bomb explodes in the air 500 meters above the ground, it will generate wind pressure of 440 meters per second at the explosion center.

This will further expand the power of this atomic bomb. This is why the atomic bomb has such great lethality. It is before the United States can accurately calculate such a value that it must ensure that an atomic bomb will explode at high altitude in Japan.

The second reason is closely related to the target to be attacked by the US military. For people who often watch military programs, it should be noted that if a bomb can directly hit the target, the harm will be enormous.

The reason why the United States set the target of the atomic bomb at high altitude is because their purpose this time is to destroy Hiroshima, not to destroy a single device, which is also the second reason for high-altitude detonation.

The third reason is that if the atomic bomb is detonated on the ground, its power will be greatly reduced, and we also know that the impact force formed by the atomic bomb is a spherical diffusion shape. If it is set as a ground explosion, part of the power of the explosion will be absorbed by the earth. The last reason is to ensure that the bombers can retreat safely.

The above four reasons are the ultimate truth that the atomic bomb is set to explode at high altitude. Readers, what do you think?