Posted by
Message
RollTide1987
Alabama Fan
Washington, D.C.
Member since Nov 2009
49397 posts
 Online 

75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
The date was August 6, 1945, and the clock read 8:00 AM (Hiroshima time) when the B-29 Superfortress Enola Gay entered Hiroshima airspace. The plane was piloted by 29-year-old Lt. Colonel Paul Tibbets. Three weeks ago he had been in the New Mexico desert to witness the first ever detonation of an atomic bomb. Now he was piloting a uranium bomb on a mission that he and everyone else in the plane with him hoped would bring the Second World War to an abrupt end.

At 8:05 AM, flight navigator Dutch Van Kirk shouts over the comlink: "Ten minutes to the AP [aiming point]!" Seven minutes later, control of the aircraft is handed over to bombardier Thomas Ferebee, as the bomb run begins. At around this same time, Radio Hiroshima reports that three American aircraft had been spotted over Hiroshima airspace. Not much could be done about it, however, as all three planes are Superfortresses flying at a cruising altitude of 31,500 feet. At this point in the war, Japan had no countermeasures against planes flying so high in the sky. Aside from the Enola Gay, one Superfortress (Great Artiste) is there to take scientific measurements while the other (Necessary Evil) is there to record video and photographic documentation of the event. At 8:12 AM, Tibbets tells the crew: "On glasses." Even from the relative safe distance the Enola Gay should be when detonation occurs, the magnitude of the flash would still be enough to cause at least temporary blindness.

At 8:14 AM, Ferebee's aiming point - the T-shaped Aioi Bridge - is now in clear view. The 60 second sequence to automatic release is engaged via the Norden bombsight. At the same time, Luis Alvarez - a researcher on the Manhattan Project - drops two pressure gauges from Great Artiste via parachute to determine the bomb's yield. Observers within Hiroshima some six miles below the aircraft remember seeing these devices as they floated slowly toward the ground.

It is now 8:15 AM and the Enola Gay is flying at an altitude of 31,050 feet when its bomb bay doors snap open. Almost immediately, the atomic bomb known as Little Boy detaches from the bomb bay and begins its descent toward Hiroshima. Ferebee shouts: "BOMB AWAY!" Tibbets immediately takes back control of the aircraft and pulls it into a sharp 155 degree turn to the right in an effort to get clear of the city before detonation.

After falling for 43 seconds, the time and barometric triggers started the firing mechanism: a uranium bullet fired down a barrel into a uranium target. Together they started a nuclear chain reaction. Solid matter began to come apart, releasing untold quantities of energy. At 8:16:02 AM, Hiroshima time, Little Boy detonated at an altitude of 1,968 feet above the Dr. Shima's Clinic - some 550 feet away from the aiming point of Aioi Bridge. A tenth of a second after detonation, the fireball has expanded to a diameter of 100 feet and reaches a peak temperature of 500,000 degrees Fahrenheit. Some .15 seconds after detonation, the super heated air above ground zero glows and a woman sitting on the steps of the bank of the Ota River a half mile away is instantly vaporized.

Within three tenths of a second after detonation, intense infrared energy is released and burns exposed skin for miles in every direction. Roofing tiles fuse together, a bronze Buddha statue melts, along with granite stones. The soft internal organs of humans and animals evaporate as the blast wave propagates outwards at speeds exceeding 7,200 MPH. Approximately one second after the initial blast, the fireball reaches its maximum size of 900 feet in diameter and the blast waves slows to a speed of some 768 MPH. The temperature at ground level directly below the blast has now cooled to around 7,000 degrees Fahrenheit. The blast wave spreads fire outward in all directions at 984 MPH, tearing and scorching the clothing off every person in its path. The blast wave hits the mountains surrounding Hiroshima and rebounds back. Approximately 60,000 out of the city's 90,000 buildings are demolished by the intense wind and firestorm.

Approximately 525 feet southwest from the hypocenter, the copper cladding covering the dome of the Industrial Products Display Hall is gone, exposing the skeleton-like girder structure of the dome. However, most of the brick and stonework of the building remains in place. The ground within the hypocenter cools to 5,400 degrees Fahrenheit as the mushroom cloud reaches a height of approximately 2,500 feet. Shards of glass from shattered windows are embedded everywhere, even in concrete walls. The fireball begins to dim but still retains a luminosity equivalent to ten times that of the sun at a distance of 5.5 miles.

Nuclear shadows appeared for the first time as a result of the extreme thermal radiation. These shadows were outlines of humans and objects that blocked the thermal radiation. Examples are the woman who was sitting on the stairs near the bank of the Ota River. Only the shadow of where she sat remained in the concrete. The shadow of a man pulling a cart across the street is all that remained in the asphalt. The shadow of a steel valve wheel appeared on a concrete wall directly behind it because the thermal radiation was blocked by the outline of the wheel.

The firestorm continued to rage within an area which had now grown to over a mile wide. A gruesome, raging red and purple mass begins to rise in the sky. The mushroom column sucks superheated air, which sets fire to everything combustible. A coded message is sent to General Thomas Farrell at Tinian. It stated: “Clear cut, successful in all aspects. Visible effects greater than Alamogordo. Conditions normal in airplane following delivery. Proceeding to base."

The Enola Gay circled Hiroshima a total of three times beginning at 29,200 feet and climbing towards 30,000 feet before heading for home. It was 368 miles from Hiroshima before Caron reported that the mushroom cloud was no longer visible.

Image: https://cdn.theatlantic.com/thumbor/O7KHJwnTAnSmajvuy_5NWg8fZKw=/media/img/posts/2015/08/AP528138208966_thumb_615x790_110562-1/original.jpg

The "mushroom cloud" rising above Hiroshima - photograph taken by the B-29 Superfortress Necessary Evil (August 6, 1945)







TigerBR1111
LSU Fan
Baton Rouge
Member since Sep 2014
3345 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
Terrible but ironically it probably saved many more lives than it took.


TH03
Iowa State Fan
Member since Dec 2008
167748 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

flying at a cruising altitude of 31,500 feet.

quote:

550 feet away from the aiming point of Aioi Bridge


Ridiculous accuracy from that height.


Swamp Angel
LSU Fan
Lawrenceville, GA
Member since Jul 2004
3353 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
Thank you for the reminder. Let's all hope that such awesome power is never released on humanity again.

In the end, the two bombs may well have saved many thousands of more lives than they took by making an invasion of Japan unnecessary, but the sheer horror of the aftermath...


Tigerpaw123
USA Fan
Louisiana
Member since Mar 2007
14607 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

Necessary Evil


Replies (0)
Replies (0)
343
SEClint
New Orleans Saints Fan
New Orleans, LA/Portland, OR
Member since Nov 2006
36234 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
Shouldn't have did that shite in Hawaii


Replies (0)
Replies (0)
1126
VADawg
Georgia Fan
Jacksonville
Member since Nov 2011
23494 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

Terrible but ironically it probably saved many more lives than it took.


No probably about it. The estimated death toll of Operation Downfall is conservatively listed at 5 million people, including Japanese citizens and American POWs who would have been executed in some of the most horrific ways known to man as soon as the invasion began.

That was an evil, barbaric society and dropping the bombs was necessary to bring them to their knees.


VolsOut4Harambe
Tennessee Fan
Atlanta, GA
Member since Sep 2017
5403 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

That was an evil, barbaric society and dropping the bombs was necessary to bring them to their knees.


This. Nazi Germany didn’t have shite on the Japs.


slackster
Stanford Fan
Houston
Member since Mar 2009
68108 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

Aside from the Enola Gay, one Superfortress (Great Artiste) is there to take scientific measurements while the other (Necessary Evil) is there to record video and photographic documentation of the event.


This is understandable at the time, but it almost seems sadistic in hindsight.

Had to be done though, there is no argument there.


slackster
Stanford Fan
Houston
Member since Mar 2009
68108 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

In the end, the two bombs may well have saved many thousands of more lives than they took by making an invasion of Japan unnecessary, but the sheer horror of the aftermath...


Those two bombs saved a ton of Japanese and American lives, but they've also saved countless lives of citizens across the globe ever since. Mutually assured destruction is real, and a nuke being used in the past truly enforces it.


PrimeTime Money
USA Fan
Houston, Texas, USA
Member since Nov 2012
25560 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

That was an evil, barbaric society
It’s crazy how much Japan has changed.


jlovel7
LSU Fan
Louisiana
Member since Aug 2014
12198 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
Thinking about how old I am now it blows my mind that currently that was 49 years before my birth. In a little over 10 years I will be as old as the atomic bomb was on the day of my birth. Wild.
This post was edited on 8/5 at 6:35 pm


whitetiger1234
LSU Fan
Chaz
Member since Oct 2016
2779 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

Mutually assured destruction is real, and a nuke being used in the past truly enforces it.


What’s scary is, It doesn’t feel like China gives a frick


ksayetiger
Wisconsin Fan
Centenary Gents
Member since Jul 2007
55755 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

550 feet away from the aiming point of Aioi Bridge


Ridiculous accuracy from that height.


thays like aiming for where the band sits in tiger stadium and hitting the south end zone upper deck. insanely accurate


Replies (0)
Replies (0)
182
VADawg
Georgia Fan
Jacksonville
Member since Nov 2011
23494 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

This. Nazi Germany didn’t have shite on the Japs.


They really didn't. For some reason, we are taught much more about the European theater in school than the Pacific theater, but there is an easy case to be made for the WW2 era Japanese being the most evil society in the last 1000 years. The stories of what they did to POWs would make your skin crawl.

It amazes me how much they changed after the war despite having the same Emperor from 1926-1989.

ETA: If the Chinese ever decide to get revenge for what happened during this era, Japan will have absolute hell to pay. What they did to the Chinese is absolutely on par with what the Germans did to Jewish people.
This post was edited on 8/5 at 7:05 pm


Tiguar
Minnesota Fan
Montana
Member since Mar 2012
29238 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

For some reason, we are taught much more about the European theater in school than the Pacific theater


Image: https://i.4pcdn.org/pol/1496762705042.png


Replies (0)
Replies (0)
811
jennyjones
New Orleans Pelicans Fan
New Orleans Saints Fan
Member since Apr 2006
7798 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

Thinking about how old I am now it blows my mind that currently that was 49 years before my birth. In a little over 10 years I will be as old as the atomic bomb was on the day of my birth. Wild.





So you’re 39. Got it


bobdylan
LSU Fan
Cankton
Member since Aug 2018
533 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
That is chilling and I can’t comprehend it. I have a couple questions.

quote:

. At the same time, Luis Alvarez - a researcher on the Manhattan Project - drops two pressure gauges from Great Artiste via parachute to determine the bomb's yield. Observers within Hiroshima some six miles below the aircraft remember seeing these devices as they floated slowly toward the ground.


Do you know how they retrieved these pressure gauges or how that worked? Surely they would have been obliterated?

Also, why was it necessary to switch pilots?


Breesus
USA Fan
House of the Rising Sun
Member since Jan 2010
65907 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
quote:

This. Nazi Germany didn’t have shite on the Japs.


It always amazes me that the vast majority of Americans know literally nothing about the Pacific Asian side of WWII


choupiquesushi
LSU Fan
yaton rouge
Member since Jun 2006
23663 posts

re: 75 years ago right now....The city of Hiroshima disappeared from the face of the earth....
Chopsticks


Replies (0)
Replies (0)
02
Page 1 2 3 4 5 6 7 8 9
Jump to page
first pageprev pagePage 1 of 9next pagelast page

Back to top

logoFollow TigerDroppings for LSU Football News
Follow us on Twitter, Facebook and Instagram to get the latest updates on LSU Football and Recruiting.

FacebookTwitterInstagram