Michele Besso

Swiss engineer (1873–1955)

The collaborative relationship between Michele Besso and Albert Einstein remains a documented cornerstone in the history of theoretical physics. Born in 1873 in District 8, Besso navigated a career as a mechanical engineer and mathematician, eventually maintaining citizenship in both Italy and Switzerland while providing the intellectual sounding board necessary for the development of special relativity.

Professional Education and Background

Besso completed his formal studies at ETH Zurich and the University of Zurich. His technical training supported his primary professional identity as an engineer and mathematician. Descended from a Sephardi family, he held familial ties to prominent figures such as the mathematician Davide Besso and Marco Besso, who served as the president of Assicurazioni Generali.

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Collaboration at the Patent Office

During his tenure at the patent office in Bern, Besso worked alongside Einstein. Their professional association deepened when Einstein facilitated Besso's employment at the office. Throughout this period, Besso introduced his colleague to the writings of Ernst Mach, whose critical stance on physics provided a framework that significantly influenced Einstein's own methodology and approach to scientific discipline.

Contribution to Special Relativity

Besso occupies a specific place in the literature of physics for his role in the formulation of special relativity. Einstein formally acknowledged this input in his original paper, noting that Besso provided steadfast support and valuable suggestions regarding the problems addressed in the work. Einstein frequently referred to him as a primary sounding board for his evolving scientific theories.

Personal Ties and Final Years

Beyond their scientific collaboration, the two men maintained strong social connections. Einstein introduced Besso to Anna Winteler, who became his wife; she was the sister of Maria Winteler, a previous romantic interest of Einstein. Besso died in Geneva in 1955 at the age of 81. Shortly before his own death, Einstein wrote a letter to the Besso family reflecting on the nature of time and the passing of his friend.

Fast facts

Questions readers ask

What was Michele Besso's specific role in Einstein's research?

Besso served as a critical sounding board for Einstein's ideas and is officially credited by Einstein for his contributions and suggestions during the development of the theory of special relativity.

How long after Besso did Albert Einstein die?

Albert Einstein died on 18 April 1955, which was one month and three days after the death of Michele Besso.

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