**Organisers:**

Joseph Kouneiher, Nice University (France)

Jean Jacques Szczeciniarz, (D. Diderot Paris7 university)

Thierry Masson, (Université de Marseille)

**Argument:**

the aim of this session is to explore from the philosophy and history of sciences point of view, some radical questions which are old but should be re-visited to better understand the history of the actual physics and mathematics. A questions which can treat for examples the ideas of

- The mathematical models of Physics: discrete or continuous ?
*Plato* - Ether ?
*Maxwell* - ”Constants of Nature”, Are they constant in extreme conditions?
*Dirac* - The history of the intertwining between mathematics and physics. Indeed, as we know the ultimate aim of the mathematician is to fit mathematical beauty to experimental evidence
*Weyl*, and the ultimate aim of the physicist is to predict experimental evidence from simple mathematical models*Newton,Einstein*. What we can learn about this exchanges by regards to the philosophy and history of sciences concern.

**Contact email: **Joseph Kouneiher

**Deadline for paper submission:** November 30, 2017