The operation is to install within Europôle Mediterranean Arbois, Aix in the country, a national laboratory for mass spectrometry accelerator mass type Tandetron dedicated to the analysis of cosmogenic nuclides (Dating) , on behalf of CEREGE and CNRS. Total area of the operation: 800 sq. meters. Construction cost: € 1.5 million is an enigmatic building does not reveal itself, a reality that breathes more secret and unseen, An Allegory of the inner function, an accelerator effect. Representation in resonance with the site, with a variable geometry, crept through the trees, In a report direct to the ground, it is an emergence of the earth, A gem for the gem that exudes elegance and mystery, a reality that breathes more secret and unseen, An Allegory of the inner function, an accelerator effect. Representation in resonance with the site, with a variable geometry, crept through the trees, In a report direct to the ground, a rise of land, work on the subject, captive power, shadow and light. This is a technical performance non-demonstrative, Next implementation scholarly and economic Guarantor of an attitude of meaningful design, a tribute to our nation's elite, our learned scientists, who deserve more than their sporting calendar.