Tobias Schütz completed his Ph.D. at the institute of mathematics at the Johannes Gutenberg University Mainz in 2021. His interests include the history of physics in the 20th century with a special focus on Einstein’s works, the interdisciplinarity of physics, mathematics, and chemistry as well as the didactics of these disciplines.​

• Introduction.- Focus on Mathematics.- Einstein and Projective Geometry.- Different Pathways to the Generalization of Kaluza’s Theory.- Einstein’s Further Considerations on the Generalized Kaluza Theory.- Considerations on Delta Functions.- Methodological Reflections.- Conclusion.