Color Television

O.1969-5

Americans who owned color televisions were cautioned by the U.S. government to stay at least 6 feet (1.8 m) away from their sets when watching TV, “and to stay away from the sides and the back of the set” because of unsafe levels of radiation. The United States Department of Health, Education and Welfare issued the warning after a report that 1,000 of 5,000 color TV sets in Suffolk County, New York “were emitting more than the accepted level of radiation” of 0.5 milliroentgens of x-ray and gamma ray radiation per hour.

Phantom

O.1969-4

Le mannequin fantôme FM-2 a été mis au point à l’Institut de recherche sur les problèmes médicaux et biologiques de l’Académie des sciences de l’URSS en 1968. Sa première mission a eu lieu à bord de Zond 7 en août 1969. FM-2 a survolé la lune à bord de Zond-7 à une distance de 1984,6 km. FM-2 a été réutilisé lors du vol orbital de six jours de Cosmos 368 en octobre 1970. Il a ensuite été mis à l’honneur au Musée polytechnique de Moscou. Le mannequin avec le visage de Gagarine a été conçu pour étudier l’effet des radiations spatiales sur le corps humain. La tâche était compliquée par le fait que pour évaluer correctement la dose de rayonnement, il fallait que le mannequin réagisse au rayonnement de la même manière que les tissus du corps humain. Cela explique le choix inhabituel des matériaux : blé et sciure de bois.

 

Science club

P.1946-10

Des repas comportant des aliments radioactifs ont été servis à une quarantaine d’enfants handicapés mentaux dans le cadre d’expériences sur le nucléaire effectuées aux Etats-Unis entre 1946 et 1956 par des chercheurs du Massachusetts Institute of Technology (MIT) et de l’université de Harvard. Ces tests, qui n’avaient jamais été tenus secrets, étaient cependant passés inaperçus, et viennent d’être révélés par la presse de Boston. Les autorités de l’Etat du Massachusetts ont ouvert une enquête.

https://www.lemonde.fr/archives/article/1993/12/30/etats-unis-lors-d-experiences-menees-dans-les-annees-40-et-50-des-aliments-radioactifs-ont-ete-servis-a-des-enfants-handicapes_3972839_1819218.html

ENORMOZ

D.1945-16

Here we have two diagrams of the Nagasaki atomic bomb (Fat Man) based on information passed on to the Soviets from Klaus Fuchs and other spies. These aren’t particularly sensitive today, but would have been Top Secret–Restricted Data when they were acquired. On the right is the basic dimensions of the body of the bomb, and on the left is a more detailed arrangement showing the electrical systems inside the bomb. As anyone reading this blog no doubt knows, the Soviet Union had a number of spies in high places in both the US and UK sides of the Manhattan Project, which they dubbed “ENORMOZ” in their code language.

http://blog.nuclearsecrecy.com/2012/07/27/rare-photos-of-the-soviet-bomb-project/

Taboshar

P.1944-5

Perspective view of a mine at Taboshar, Tajikistan, from 1944. Taboshar was one of the few early sources of Soviet uranium, known since the 1920s and mined extensively for uranium since 1945. The acquisition of raw uranium was the key setter of the timetable of the Soviet bomb program. They had very few known sources of the ore at the end of World War II, and the United States and the United Kingdom had worked behind the scenes to attempt secure a monopoly on all other known world supplies. General Groves thought their access to uranium was so bad that it would take the Soviets 20 years to get a bomb — but it turned out that uranium is more plentiful than he realized, and concentrations that wouldn’t be economic to mine for the United States turned out to be just fine for Soviet slave labor.

Joe-1

D.1947-3

The caption says this is model of the first Soviet bomb at “the Polygon,” which was the code name for the Semipalatinsk test site.5 Somehow it manages to look very futuristic (the big circles, the large poles) and yet quite rustic (the trees, the way in which everything looks like it has been fashioned by hand by… Lire la suite Joe-1

Rainbarrel

D.1947-2

The Soviet Union made no announcement after its first atomic bomb test in 1949—but the US did. This is the hitherto untold story of how the secret was extracted from rainwater.

Herbert Friedman, Luther B. Lockhart and Irving H. Blifford

Image : Joe-1, 29 August 1949. Photo from Peter Kuran’s film “Trinity and Beyond: The Atomic Bomb Movie,” as displayed on nuclearweaponsarchive.org, and used with permission of Peter Kuran.