President of Switzerland
Begins a one-year term as President of the Swiss Confederation.
Explore 6 historical events and records for Switzerland in 1912.
Sorted by month and day. Records with no month are shown last. Showing 6 of 6 unique records.
Begins a one-year term as President of the Swiss Confederation.
Einstein's Zurich work moved toward describing gravity through non-Euclidean spacetime geometry, connecting gravitational phenomena with the mathematical curvature of the metric.
Einstein increasingly identified the spacetime metric as the quantity that should represent gravitation, replacing the idea of gravity as an ordinary force field on fixed space and time.
With Marcel Grossmann's mathematical guidance, Einstein began using Ricci and Levi-Civita tensor calculus as the formal machinery needed to describe a relativistic gravitational field.
Einstein used the thought experiment of a rotating disk to show that ordinary Euclidean geometry need not describe measurements made in accelerated systems, strengthening the geometric approach to gravity.
Before settling on tensor field equations, Einstein explored restricted scalar descriptions of gravitation and tested whether they could preserve relativity while reproducing known gravitational effects.
Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.