1. Walther Heinrich Wilhelm Ritz was a Swiss theoretical physicist.

1. Walther Heinrich Wilhelm Ritz was a Swiss theoretical physicist.
Walter Walther Ritz's father Raphael Walther Ritz was born in Valais and was a well-known painter.
Walther Ritz's mother, born Nordlinger, was the daughter of an engineer from Tubingen.
Walther Ritz was a particularly gifted student and attended the municipal lyceum in Sion.
In 1900, Walther Ritz contracted tuberculosis, possibly pleurisy, which he later died from.
Walther Ritz was a fellow student of Einstein in Zurich, while he studied there.
Walther Ritz died in Gottingen and was buried in the Nordheim cemetery in Zurich.
Walther Ritz's tombstone is in section 17 with the grave number 84457.
In 1909 Walther Ritz developed a direct method to find an approximate solution for boundary value problems.
In 1908, Walther Ritz found empirically the Walther Ritz combination principle named after him.