On the day of the atomic bomb -Atomic bombing target point Aioi Bridge-

This time, it is about the atomic bombing target point.

相生橋 -Aioi Bridge-

As you may know, at 08:15 am on August 6, 1945, an atomic bomb was dropped on Hiroshima by a B-29 bomber (commonly known as Enola Gay). This is the first time nuclear weapons have been used in war since history.It is said that this single bomb killed nearly half of Hiroshima's population, 140,000 people.

The U.S. military operations at that time were:

1) Attack date August 6
2) Attack target Central Hiroshima and industrial area
3) Preliminary 2nd target Kokura Arsenal and the city center
4) Preliminary 3rd target Nagasaki city center
5) Special Directive Limited to visual drop

It was so.

* At first, on August 9, the atomic bomb was to be dropped on Kokura, the second target, but it was changed to Nagasaki , the third target, couse of poor visibility due to bad weather.

The sky above Hiroshima city at 8:15 am on August 6 was sunny. Therefore, the atomic bomb was dropped as planned.

The fifth point of the strategy, "Special Order Visual Drop", was marked by the unique shape of the T-shaped "Aioi Bridge".

Hiroshima city from the height of 9,600m where Enola Gay actually dropped the atomic bomb.It is located almost at the center and you can see the T-shaped "Aioi Bridge" (red circle).

The positional relationship between the “A-bomb Dome” and the “Aioi Bridge” (1,000m above the sky).The actual hypocenter is said to be slightly southeast of the A-Bomb Dome, offset from Aioi Bridge.

Photos near the hypocenter before and after the atomic bombing.Needless to say, the left is before the drop and the right is after the drop.Looking at the photos after the drop, you can see that everything had been erased.

The surface temperature of the fireball generated by fission is tens of thousands of degrees.The thermal energy received by the hypocenter was thousands of times the solar irradiation energy.The surface temperature became 3,000 ~ 6,000 ℃.The blast seemed to have a terrible destructive power about 10 times the central wind speed of a strong typhoon.

At that time, wooden houses were mainly used. Houses within a radius of about 3 km from the hypocenter were destroyed by heat rays and blasts.At the hypocenter, the houses collapsed and burned due to the shock wave and heat of the blast that exceeded the speed of sound in an instant, and all lives died.

If you've read "Barefoot Gen", you probably know it. People exposed to heat rays that exceed the human wisdom were evaporated and carbonized.It also depicts a free-running city train with a carbonized body holding a railing.

Another story, but the Great East Japan Earthquake has caused an accident at the Fukushima Daiichi Nuclear Power Plant.The accident at the Fukushima Daiichi Nuclear Power Plant seems to have yet to be resolved.
Alpinist Ken Noguchi reports on livestock victims in the area entitled "The Fukushima Daiichi Nuclear Power Plant, a World Within 20km". The misery is a terrible sight reminiscent of Barefoot Gen.

アルピニストの野口健さんのブログ「福島第一原発、２０キロ圏内の世界」※かなり衝撃的な写真が掲載されています。ご留意ください。


Chernobyl, Three Mile, Fukushima Daiichi.
Chernobyl prepares a sarcophagus that further envelops the existing sarcophagus and deals with radioactive leaks.The destructive power of atomic bombs (nuclear weapons) that exceeds human knowledge.

Humans tend to be illusioned that they can freely manipulate nuclear energy, but I don't think it's a human-controlled thing.


Now that the myth of nuclear power has collapsed, nuclear power is an extremely uneasy (dangerous) factor for Japan, where earthquakes frequently occur. It is impossible to decommission all of the nuclear power plants in Japan right now, but it may be necessary to rely on nuclear power plants.



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