Paul Bruma

Paul Bruma is a French engineer (Télécom Paris) who dedicated his post-career life to physics education. His rigorous and innovative work in Relativity was developed in close collaboration with high-level physicists, including a CNRS Silver Medal laureate.

With a strong focus on pedagogical clarity and foundational rigor, he authored a comprehensive and accessible introduction to Relativity and Cosmology.

The book is the first to make the famous equation e = mc² fully accessible—without any theoretical shortcut—to readers at the high school graduate level.

The work is divided into two volumes: the first leads from high school to early undergraduate level, and the second expands the theory up to the final years of a Bachelor's degree (or early Master's), covering tensors, Einstein's equation, and cosmological models.

Praised by leading scientists such as Jean Iliopoulos (Dirac prize) and Yves Meyer (Abel Prize), the book offers a rare combination of mathematical rigor, conceptual clarity, and smooth pedagogical progression.