For works with similar titles, see Relativity.

Contents

  This work is a translation and has a separate copyright status to the applicable copyright protections of the original content.
Original:

This work is in the public domain in the United States because it was published before January 1, 1927.

The author died in 1955, so this work is also in the public domain in countries and areas where the copyright term is the author's life plus 60 years or less. This work may also be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.

 
Translation:

This work is in the public domain in the United States because it was published before January 1, 1927.

The author died in 1960, so this work is also in the public domain in countries and areas where the copyright term is the author's life plus 60 years or less. This work may also be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.

 
  1. ↑ The fifth Appendix was added by Einstein at the time of the fifteenth re-printing of this book; and as a result is still under copyright restrictions so cannot be added without the permission of the publisher.
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