Auction Results

Global notice COVID-19 Important notice
EINSTEIN, Albert (1879-1955). Autograph letter signed ('A. Einstein') to Hermann Müntz, n.p. [postmarked Potsdam], 20 November 1929.
EINSTEIN, Albert (1879-1955). Autograph letter signed ('A. Einstein') to Hermann Müntz, n.p. [postmarked Potsdam], 20 November 1929.
EINSTEIN, Albert (1879-1955). Autograph letter signed ('A. Einstein') to Hermann Müntz, n.p. [postmarked Potsdam], 20 November 1929.
2 More
EINSTEIN, Albert (1879-1955). Autograph letter signed ('A. Einstein') to Hermann Müntz, n.p. [postmarked Potsdam], 20 November 1929.

Details
EINSTEIN, Albert (1879-1955). Autograph letter signed ('A. Einstein') to Hermann Müntz, n.p. [postmarked Potsdam], 20 November 1929.

In German, 1½ pages, 276 x 219mm. Envelope.

Unified Field Theory. Einstein explains the framework of his earliest major attempt at the unified field theory: 'The theory makes me very happy, and my belief in it is constantly increasing. I have recently lectured on it in Paris'. He sets out in turn the equations and their corresponding identities, one of them marked as 'Vertauschungsrelation' (transposition relationship), and then a process by which the orders of magnitude can be made to disappear: 'This is the strong indication of the compatibility of the equations'. As a postscript on the verso, Einstein explains how in the first approximation his equations permit in a remarkable way a choice of coordinates according to specified conditions through which a decay of the equations can be achieved – he sets this out in both the Newtonian and the Maxwellian form.

The search for a unified field theory – one which could account for all of the fundamental forces in nature – was the abiding preoccupation of Einstein's last decades. His 1929 equations constituted his first major attempt. His lecture in Paris (on 8 November) was published in the Annales de l'Institut H. Poincaré (1930), under the title 'Théorie unitaire du champ physique'. Hermann Müntz was a Polish-German mathematician, author of the Müntz approximation theorem. He collaborated closely with Einstein in the years following 1927, and his help is acknowledged in a number of papers.



Brought to you by

Robert Tyrwhitt
Robert Tyrwhitt

Check the condition report or get in touch for additional information about this

Condition report

If you wish to view the condition report of this lot, please sign in to your account.

Sign in
View condition report

More from Valuable Books and Manuscripts

View All
View All