Mushroom cloud completely covering Hiroshima City one hour after the Hiroshima Atomic Bomb

　Hiroshima Atomic Bomb was a mushroom cloud taken an aerial photograph  from the US military reconnaissance plane about one hour after explosion at Hiroshima City on August 6, 1945 at 8:15 AM. It reconnoitered the disaster at about 80 km southeast from the hypocenter. From 30 seconds after the explosion of the atomic bomb, it was turning over to observe the damage situation toward Hiroshima City. Although at about 30,000 feet (9.14 km) height also it fled over the sky, the mushroom cloud swelled and rose higher than that. With gray clouds from the purple flame, the center part exploded a red mass and the mushroom clouds expanded out. Hiroshima City was completely swallowed by pyroclastic flow like a torrents of lava. Narrowly outside of the corner of Kure City at the southeast end, the fog ranges from Kurashi to Etajima in the Seto Inland Sea, but the other northeast to Hiroshima City was completely covered with mushroom clouds.

Aerial photographs on the day following Hiroshima Atomic Bomb showed all center destruction.

   The next day after August 6, 1945 when the Hiroshima Atomic Bomb was dropped and exploded, USA military aircrafts for reconnaissance photos  flew on August 7, 1945. That took aerial photographs of the exposure to Atomic Bomb against Hiroshima City from the altitude of about 9000 m. That shot and scouted the aerial photographs after Hiroshima Atomic Bomb similar to the mosaic aerial photographs before the Hiroshima Atomic Bomb. It bursted at about 600 m above the real hypocenter of the Shima hospital about 300 m southeast of Aiyoi bridge supposed to be the hypocenter. The Circumference within about 2000m from the hypocenter was almost completely destroyed and burned down. Especially the above had been destroyed all around the Temma River to the west branched from Ota River at Hiroshima Castle, the main Ota downstream west to the Motoyasugawa river where branched to the east from Aiyoibashi Bridge.

Purple flames and Mushroom clouds burn up from the red stalk exploded by Atomic Bomb after 15min

Hiroshima Atomic Bomb called "Little Boy" was dropped from B-29 "Enola Gay" to the center of Hiroshima City. It exploded at the center of Hiroshima City on August 6, 1945, 8:15 AM. The aerial photograph 15 minutes after the exploded entirely Hiroshima City by an Atomic Bomb. Purple flames and Mushroom clouds burn up from the red stalk in the center. The altitude of Mushroom Clouds was higher than 9400m from the dropped umbrella with "Little Boy" by a visual aiming. As a result of the blast from the atomic bomb, the center of Hiroshima City was completely destroyed and black smoke covered and burnt down at a stretch. The lower right was only the southern end on lower right with war port and the southwestern end on lower left with military factories had been only escaped the exploded Atomic Bomb with Mushrooms Clouds. One of the goal had experimented indiscriminate destruction to almost all of the citizens and buildings, avoiding parts of military facilities and military factories after all.

Disaster map in Hiroshima City by Hiroshima Atomic Bomb of people and buildings.

     It was a map of the damage situation of the Hiroshima Atomic Bomb that bursted on August 6, 1945 in Hiroshima city. According to the announcement of Hiroshima prefectural police headquarters on November 30, 1945, the area of damage in Hiroshima Community Area was 33.46 million ㎡ : square meters ( accounting for 92%), the burned area was 13.22 million ㎡ (40%).     The casualties of civilians were 78, 150 people dead, 9,428 seriously injured, 27,997 mild people, 3,983 missing people, 176,983 other victims, totaling 306,645 people. The inside of the red half line was a burned-out area, 92% of pre 76,327 houses or buildings were damaged, 47, 969 of full-burned houses, 3,818 full-burnst and 18,369 semi-burnt or semi-bursts.      From inside the hypocenter of the Hiroshima Atomic Bomb, the blue half line indicated 0.5 km, 1 km, 1.5 km, 2.0 km, 2.5 km, 3.0 km, 3.5 km, 4.0 km from the hypocenter Km in the range of each 500 m. Red Circles ◯ is military forces and Blue Circles ◯ was the arrangement of emergency first aid stations. (Hiroshima Atomic Bomb Medical History, 1961)

Hiroshima Atomic Bomb had been formulated on mosaic aerial photographies.

   In April 1945, a satellite image of Hiroshima City had been formulated by combining a number of aerial photographs like a mosaic for a strategy plan to drop the Atomic Bomb. Hiroshima City had been made one of target plans during 3 months before the atomic bomb experiment was successful on July 16. The target standard for the Little Boy to be dropped and exploded, where was Aioi Bridge in the center of Hiroshima City, was designated as No. 90.30 on the Map. It had drawn a concentric circles within a radius of 70,00 feet (2.13 Km) from the center of Aioi Bridge (east-west scale: 063, north-south scale: 096). Aerial drawings had been confidential documents for pilots of Enola Gay B-29, bombers and patrols.

Final orders of Atomic Bombs to Hiroshima, et.al. from the Secretary of War

  An experiment of Atomic Bomb was successful on July 16, 1945 in the Aramogord Desert on USA. Nine days after, on July 25, an official Atomic Bomb submission order was issued, based on the approval of the Secretary of War and the Chief of Staff.   Thos T. Hardy of the Chiefs of Staff on behalf of the General Army Chiefs formulated a command of dropping and recording the Atomic Bomb to Gen. Carl Sparts, a commander of the Army Strategic Air Force. Nine days after, from August 3rd, depending on the weather condition, the first special Atomic Bomb was ordered to drop one of the targets: Hiroshima, Kokura, Niigata and Nagasaki with visual inspection from 20th Air Force.

The real Little Boy of Atomic Bomb just before Hiroshima City

   "Little Boy" of Uranium type atomic bomb was installed in the pit just before loading in the B-29 bomber "Enola Gay" which drove the Hiroshima atomic bomb. It was used for the first time in nuclear warfare on human history. Little Boy was manufactured with uranium 235 with a total length of 3.12 m, a maximum diameter of 0.75 m, a total weight of about 5000 Kg. Little boy was handled confidentially because it was first exploded in actual war without preliminary nuclear test. The body of Little Boy was lifted from this pit with a hydraulic jack and mounted into the bomb storage of Enola Gay aircraft.

 

First Nuclear Wars era from the success of Manhattan Project

 On July 16, 1945, Manhattan Project succeeded in experimenting the first Atomic Bomb in human history on　Alamogord Desert in the United States. The world's first artificial atomic bomb exploded at 5 : 29 : 45 AM. The target was 48 Km southeast of Socorro, New Mexico. The name of this Trinity experiment was cited from the Trinity of Christianity Theory. From this critical point, the first time in the history of Mankind has entered the era of Nuclear War. The nuclear bomb with the type of the "Gadget" bomb applied with plutonium of Nagasaki different from uranium 235 of Hiroshima exploded widespread Atomic Bomb.

Hiroshima Atomic Bomb at First Nuclear War of Human Race

    In the first Nuclear War of the human race, an atomic bomb burst in Hiroshima City, Japan at 8:15 AM on August 6th in 1945. Little Boy's nickname for atomic bomb was dropped from A-bomb carried by Enola Gay, B-29 toward Aioi Bridge for Hiroshima City's target point. It exploded at 580 m above the Shima Hospital in 19 Saiku-machi in Hiroshima City where was near the target.