Tag Archives: NASM

Hiroshima and the Enola Gay

Today, August 6th, in 1945 the Boeing B-29 Superfortress “Enola Gay” dropped over Hiroshima (Japan) the first nuclear bomb, “Little Boy“, used in combat. I guess you have had the chance to read about it in several places along the day. However, I thought of writing this post in order to connect several points related to the story, some of which I have only discovered quite recently…

Hiroshima

Luca and I, together with some friends visited Japan during the summer of 2008. A mandatory stop was Hiroshima. There we visited the Hiroshima Peace Site, museum and park.

You can spend several hours in the museum: from reading about the life in Hiroshima prior to the war, during the war and before the bombing, about the Manhattan Project, learning from specific cases of victims of the bomb, several testimonies, replicas from wounded people, etc. Some parts of the museum are truly shocking.

In the museum you could read several letters related to the Manhattan Project, for example these two from brigadier general Leslie Groves (in charge of the project) and Albert Einstein:

Letter from general Leslie Groves (Peace)

Letter from brigadier general Leslie Groves (Hiroshima Peace Memorial Museum).

Einstein’s letter to F.D. Roosevelt (Hiroshima Peace Memorial).

Some years ago, I read the book “The World as I see it“, from Albert Einstein in which he explained retrospectively his thoughts at the time of supporting the Manhattan Project. I already wrote a post about that book and recommend the reading of it.

In the Memorial Park, two things caught my attention: Genbaku Dome and the story of Sadako Sasaki.

Genbaku Dome

The dome (also called “A-dome”) was the only structure in the area which was left standing. This is because the explosion of the bomb happened at about 600m above the dome and about 150m away horizontally enabling the structure to stand the nearly vertical compression it suffered due to the blast.

The dome was initially scheduled to be demolished, but finally it was preserved, being today UNESCO World Heritage Site.

Genbaku Dome, Hiroshima.

Genbaku Dome, Hiroshima.

Sadako Sasaki

As I did in a post I wrote 3 years ago, in order to explain her story I will paste below an excerpt from Wikipedia‘s article on the history of origami (paper birds):

Legend says that anyone who folds one thousand paper cranes will have their heart’s desire come true. The origami crane has become a symbol of peace because of this legend, and because of a young Japanese girl namedSadako Sasaki. Sadako was exposed to the radiation of the atomic bombing of Hiroshima as an infant, and it took its inevitable toll on her health. She was then a hibakusha — an atom bomb survivor. By the time she was twelve in 1955, she was dying of leukemia. Hearing the legend, she decided to fold one thousand origami cranes so that she could live. However, when she saw that the other children in her ward were dying, she realized that she would not survive and wished instead for world peace and an end to suffering.   

A popular version of the tale is that Sadako folded 644 cranes before she died; her classmates then continued folding cranes in honor of their friend. She was buried with a wreath of 1,000 cranes to honor her dream. While her effort could not extend her life, it moved her friends to make a granite statue of Sadako in the Hiroshima Peace Park: a young girl standing with her hand outstretched, a paper crane flying from her fingertips. Every year the statue is adorned with thousands of wreaths of a thousand origami cranes.   

The tale of Sadako has been dramatized in many books and movies. In one version, Sadako wrote a haiku that translates into English as:   

I shall write peace upon your wings, and you shall fly around the world so that children will no longer have to die this way.

Hiroshima Peace Memorial park paper cranes.

In previous posts in the blog I explained how I have repeatedly encountered these paper birds around the world: in NY Saint Paul’s Chapel (close to World Trade Center zone zero), in Manzanar War Relocation Center (where Americans of Japanese origin were kept captive during WWII)…

Enola Gay

The “Enola Gay“, the Boeing B-29 Superfortress (named after the mother of the pilot Paul Tibbets) that dropped the bomb has become known worldwide. You can see the actual plane at the National Air and Space Museum in Dulles (Washington DC), where it is on exhibit. I wrote about that museum in this post, and you can see the airplane in the image below:

Boeing B-29 Superfortress “Enola Gay” at National Air and Space Museum (Washington DC).

However, there are other aerospace museums where you can get closer to B-29 Superfortress aircraft, for example, the Pima Air and Space Museum in Tucson, Arizona, which we visited some months ago. There they had one B-29 on exhibit in one of its hangars:

Boeing B-29 Superfortress at Pima Air and Space Museum.

Boeing B-29 Superfortress at Pima Air and Space Museum (Tucson, AZ).

In the Pima museum, you could get really up close (not so in the NASM in Dulles) and you could get your head inside the bomb bay of the aircraft, the same bomb bay from which “Little Boy” was dropped from the “Enola Gay”:

Bomb bay of a B-29 Superfortress (at Pima Air and Space Museum, Tucson, AZ).

Bomb bay of a B-29 Superfortress (at Pima Air and Space Museum, Tucson, AZ).

Close to this B-29, they displayed two replicas of the Enola Gay and the bomb, “Little Boy”:

B-29 "Enola Gay" replica and "Little Boy" bomb replica (at Pima Air and Space Museum).

B-29 “Enola Gay” replica and “Little Boy” bomb replica (at Pima Air and Space Museum, Tucson, AZ).

And finally, you could see a replica of the Enola Gay’s Navigator’s Log. I was caught by surprise to find all this material at the museum. The original log, written by the navigator that day, Theodore “Dutch” Van Kirk, was sold in a public auction some years ago for over 350k$.

While at the museum, I took some minutes to watch the replica, the route the plane followed, the points of reference it used, the notes he made… and especially, the line in which Theodore, at 9:15am, noted “Bomb Away” (the 10th line of the second box) just before turning back over the port of the island of Omishima (which is wrongly reported in the log as “Mishima”).

Replica of Navigator's Log of the "Enola Gay" (at Pima Air and Space Museum).

Replica of Navigator’s Log of the “Enola Gay” (at Pima Air and Space Museum).

The picture above hasn’t got very good quality, but you can read an account of those moments in the following passage from the book “Japan 1945: From Operation Downfall to Hiroshima and Nagasaki” (by Clayton Chun):

Excerpt from "xxx" by Chun,

Excerpt from “Japan 1945: From Operation Downfall to Hiroshima and Nagasaki” by Clayton Chun.

***

It was a long post this time, but I think it was worthwhile to touch the story from the several points of view I have “experienced” it throughout these last years.

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Cité de l’Espace

I visited the Cité de l’Espace with my sister during last August holidays. Believe it or not, I had never been there before so I was looking forward to it.

The museum / park is very comprehensive and informative, especially for children and people who would like to know some basics about rockets, satellites and space exploration. Among the different interactive devices you can play with a gyroscope, try to dock into the ISS, launch a vehicle into a stable orbit, experiment how a satellite’s orbit parameters affect its ground-track…

I especially liked the exhibitions about celestial mechanics, space exploration and life in space, the path to the infinite and the real-size replica of the MIR space station.

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The only downside I find is the price of the ticket, above 20 €. It’s true that there are discounts for students, Airbus employees, etc., but when I compare it with the National Air and Space museums of the Smithsonian institution in DC which are entry free I am disappointed. I believe museums and especially science-related museums should be very affordable for families with small children, when they are most captivated by science at play.

The Cité de l’Espace was definitely worth a visit.

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Space Shuttle last ride

I already wrote that my childhood dream job was to be an astronaut and that led to pursuing aerospace studies. In the same post I recalled a small toy of the Challenger Space Shuttle and how this toy contributed to that dream. Well, this post is just an homage paid to the Space Shuttle, or officially the NASA Space Transportation System, STS.

The last mission of the STS is scheduled for next Friday, July 8th. When the Atlantis is supposed to make the last lift-off for the mission STS-135 which, after 12 days, will end the 30 years of Shuttle flights.

During our last visit to the USA, Luca and I had the chance to see one of the Space Shuttle vehicles at the National Air & Space Museum (NASM). The vehicle at display there is the Enterprise.

I already mentioned in that post there that the Enterprise is the only vehicle of the fleet which never went to outer space. It was used for training purposes, to let the astronauts train the gliding descend they would have to make once the vehicle re-entered in the atmosphere. Thus, some parts of that vehicle are dummies.

The Enterprise hasn’t got the same thermal protection tiles since it wouldn’t need them, however its surface replicates the tiles with some kind of rubber ones so the flow of air around them would be the same as in the other vehicles. Another difference is in the engines at the back. The 3 engines that the Shuttle has at the back are its orbital maneuvering system, which allow it to adjust its orbit (they’re not atmospheric engines to propel the Shuttle in its flight back to Florida). Again, since the Enterprise would never go to outer space it wouldn’t need to adjust its orbit and the engines it has are just dummies to provide the same distribution of weight and forms in the vehicle.

I also mentioned in the previous post about the visit to NASM that the vehicle was going to be named Constitution until a public campaign achieved its goal of naming it Enterprise after the spaceship featured in Star Trek.

Find below some pictures of the Enterprise at NASM:

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The Economist features this week 3 articles about the Space Shuttle program. I found parts of them very critic of the costs of the program, but nevertheless they give a somewhat complete picture of the history of the Space Shuttle and what may lay ahead for space exploration.

The different Shuttle vehicles (and other related materials) will be distributed among several museums and educational institutions. The Enterprise will leave the NASM and will go to the USS Intrepid in NYC while the Discovery will be hosted at NASM. You may find other locations in this article.

Finally, NASA just unveiled last Friday a wonderful documentary (80 minutes) about the history of the program: its launch, the vast engineering undertaking, the first mission, the Challenger and Columbia accidents, the improvements that the accidents brought, etc. To close the circle, the documentary is narrated by William Shatner, an actor of Worldly fame as he featured James T. Kirk, captain of the USS Enterprise in Star Trek. See a small trailer of the video:

PD: In the full length video, in the images shown of the mission STS-95 which brought John Glenn back to Space at age 77, appears Pedro Duque a Spanish astronaut that coincidentally was my teacher at the aerospace engineering school.

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