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Manhattan Project Pin

silver pin Front

The Manhattan Project was perhaps the greatest technological and scientific effort of the twentieth century with the space race. Once finished, it was decided that all participants, regardless of rank and level, should have a commemorative pin. When World War II ended, each of the 132,000 people who were part of project received a small insignia.

Reverse of pin

The silver pin was for all those who had worked for a year or more for the veterans. A all those who participated in the project for less than a year gave them the bronze. We assume that Oppenheimer would deserve the gold-deserved, for sure "!

Bronze Pin

The symbology is as follows: "A bomb" atomic bomb, and the building / castle that was listed under the symbol representing Army Corps of Engineers . In fact, the headquarters of the Manhattan Project, located in Oak Ridge, were known as "the castle."

The pin measures 1 inch in diameter

These pins are collectors' items today. We want to thank Emily Everhart, the auction house Cowans, for offering us some pictures. On their website they have historical pieces worth visiting. We also appreciate the assistance of Mike Schultz and Paul Frame.

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A symbol for nuclear archaeologists explain everything

Incredibly, so was the original symbol of 1946!

A new form of nuclear energy as a universal signaling required. In 1946 the Berkeley Radiation Laboratory , University of California, created the symbol - known as trefoil : a circular atom emits radiation, with which you should mark any cargo, equipment or material nuclear. Do you suggest danger, risk or fear? To us either!

trifoil second version of the force since 1948

The criticism began to take effect, and early 1948, the Oak Ridge National Laboratory replaced blue and yellow. This version was more serious but also still not describe the real threat posed to people being near a radioactive source.

The traditional symbol to indicate the radiation hazard

the late '50s, the American National Standards Institute normalized symbol with black and yellow colors we know. Here, the signal becomes more serious, more gloomy, and is accepted universally. But it would be the latest incarnation of the radiation warning sign.

And finally comes a signal that is scary!

In 2007 the IAEA established this symbol as which should indicate the presence of radioactive material / ionizing. Tested with 1650 people and even children, who they said rightly that red-imposed upon them more fear than yellow. Trefoil is maintained but nothing is left to chance: it arise rays that go into a skull (death eternal symbol) and a human figure moving away swiftly and quickly. Will the final version?

Wikipedia has come to be our great ally. Thanks again .

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Operation Doorstep, 1953

There is a principle in the new digital communication states: talk about what you know, and refers the rest . The newspaper published Lainformacion.com few weeks ago this fantastic article written by Antonio Martínez Ron, creator of the brilliant blog Fogonazos .

is an article as well researched and written, and fits well in this blog, that ignoring the aforementioned maximum, and it is impossible to improve it in any way, I leave the link to what you read in its original format. Set aside five minutes and enjoy.

Here's the link: Archaeologists Nuclear.

Aberrón Thanks for your blog and reports. Also tell you that if you keep doing this kind of article ... I have to close Atomic Nuclear Century !