750 films containing a state of confidential treatment for 55 years were released from confidentiality and part of it released on YouTube

A film that captured the state of the nuclear test carried out by the United States from 1945 to 1962 by high-speed shooting was released after the confession of the US government for the first time in 55 years was lifted. Film whose deterioration has passed through the years has been restored, some parts have been released on YouTube after scanning and digital data conversion.

Physicist declassifies rescued nuclear test films | Lawrence Livermore National Laboratory
https://www.llnl.gov/news/physicist-declassifies-rescued-nuclear-test-films

Hundreds of films of nuclear bomb blasts films declassified, uploaded - Business Insider
http://www.businessinsider.com/new-nuclear-explosion-youtube-videos-llnl-2017-3

It took place on July 16, 1945Trinity experimentSince then, more than 2000 nuclear tests have been conducted in the world. More than 1,000 nuclear tests were conducted only in the US, which was in the cold war regime with the former Soviet Union, and 210 atmospheric nuclear tests that actually exploded nuclear bombs in the atmosphere were carried out. In the experiments, in order to investigate the spreading manner of the fireballs and the power of the explosion, photographing is performed with a high-speed camera of 2400 frames / second, and it is presumed that the number of the films is more than 10,000 It is.

However, there are few things to know about that situation, many are preserved as a confidential treatment in strictly controlled storage bases in various parts of the United States, deterioration has progressed over the years, and the past records are eternal It came to the situation that it will not be seen in. Established in the United States for nuclear weapons development, currently conducting various energy and biotechnology researchLawrence Livermore National Laboratory(LLNL) has been collecting and restoring these films over the past five years, and now we are archiving valuable videos that show the state of atmospheric nuclear tests prohibited.

Weapons physicist Greg Spriggs and other researchers from scientists have ascertained the presence of approximately 6,500 films, of which 4200 scans are being carried out and further 400 to 500 books are reanalyzed and at the same time , 750 are declared confidentiality designation. And this time, as of March 16, 2017, 64 images are released on LLNL 's YouTube channel.

LLNL Atmospheric Nuclear Tests - YouTube


This image was carried out in the Pacific Nuclear Test Site in 1958Strategy of hard tackOf the experiment name "Redwood" that contained the state. At 5:30 am on June 28, 1958 at local time, the moment the 412 kiloton nuclear bomb exploded, the sky in the morning glow shimmered white and part of the appearance of a large white cloud caused by the shock wave spreading like an umbrella Is contained.

Operation Hardtack-1 - Redwood 52538 - YouTube


Explosive scene of the experiment name "Nutmeg" conducted at 6:30 am on May 22, 1958 with the same hard tack strategy. When a nuclear explosion of 25.1 kilotons occurs, the clouds generated by the shock wave also expanded enormously and eventually disappears are recorded in a clear picture.

Operation Hardtack-1 - Nutmeg 51538 - YouTube


The image here was carried out in the Nevada nuclear test site on March 1, 1955Teapot strategyThe state of the explosion of the third operation name "Tesla" executed among them. A slow picture shows that a 7 kiloton nuclear bomb set on a tower of about 90 meters explodes and a big fireball spreads out.

Operation Teapot - Tesla 28616 - YouTube


The appearance of the state immediately after the explosion spreading a round foamy fireball. You can see something like small protruding legs in several places.


The blank part under the fireball is due to the fireball being pushed back by the shockwave from the explosion bouncing off the ground. The shock waves spread from the hypocenter point are bounced off the ground and you can see how the pounding fireball is pushed back to the sky.


A picture capturing the state of the explosion of the operation name "Turk" executed on March 7, 1955, six days after "Tesla".

Operation Teapot - Turk 28112 - YouTube


A fireball that spreads rapidly. You can see that protruding parts are formed on the surface. The thin lines seen at the bottom are those of "smoke rocket" launched to visually observe the spread of the shock wave.


On the outside of the shining fireball, you can see the creeping surface of shockwaves that concentrically spread. The shock waves reflected by hitting the ground diffuse as it is in parallel with the ground, and direct and reflected waves inflict twice damage to objects on the ground.


After that, the surroundings were covered with tremendous amount of smoke. That state is exactly the "world of death".


In 1957Plum bob strategy8th, the image capturing the fire ball of the strategy name "Diablo" in a clear view. Even with a fireball that is too dazzling to see nothing, you can see that when you adjust the brightness and shoot, you are showing a really complex look.

Operation Plumbbob - Diablo 41549 - YouTube


In what way do you respond How will fireballs be created while making such patterns, and in this it is thought that a huge amount of energy generates temperatures of several million degrees, even if you just looking A super throw scene like trembling seems to happen.


In addition, this image belongs to the strategy name "Rainier" which was executed 26 th in Plumbob strategy. Underground nuclear test performed for the first time in the US, of course we can not ascertain the flashes and fireballs associated with the explosion, but as a result of the shock waves pushing up from the bottom, there is a dog smoke on the ground surface and a small scale collapse has also occurred I understand.

Operation Plumbbob - Rainier 43771 - YouTube


In LLNL, by keeping a record of valuable experiments by proceeding with the restoration of the film destined to be weaned and disappearing from history, at the same time, by witnessing how wild nuclear weapons have tremendous power, nuclear weapons It seems that the aim is also to utilize the image as a deterrent of.