One of the great rarities of Einstein collecting

EINSTEIN, Albert.

Zur Quantentheorie der Strahlung. In: Mitteilungen der Physikalischen Gesellschaft Zürich - Zum Andenken an Alfred Kleiner, no. 18, 1916, pp. 47-62.

Zurich: Gebr. Leemann & Co., 1916.

1st Edition. Soft cover. Very Good. Item #004072

8vo (227 × 158 mm). Entire number: 143 pp. With portrait of Alfred Kleiner in heliogravure bound as frontispiece. Original printed wrappers (somewhat tanned at margins, little wear to spine ends, weak vertical strain from bending). Protected in custom-made red linen case. Provenance: Dr. Alfred Ernst, Professor of Biology at Zurich University (faded name-stamp to front wrapper). Text little age-toned, but in all a fine, crisp and clean copy. ----

THE EXCEPTIONALLY RARE FIRST EDITION of this important contribution by Einstein, which was reprinted in the Physikalische Zeitschrift (Leipzig) the following year. All subsequent research on the absorption and emission of radiation, as well as the entire development of laser technology, is based on the research presented in this work. Here, Einstein developed his derivation of Planck's radiation law and provided the theoretical basis for the laser, invented almost half a century later. Einstein combines the Bohr atomic model with Planck's quantum theory and postulates that atoms can both emit radiation spontaneously and be stimulated by external influences.
This paper is not only one of the great rarities of Einstein collecting, but also of high scientific significance.
Bibliography: Weil 78 (see also 91* for second edition). - Visit our website to see more images!

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