Über die Gültigkeitsgrenze des Satzes von thermodynamischen Gleichgewicht und über die Möglichkeit einer neuen Bestimmung der Elementarquanta in Annalen der Physik, Band 22, No. 3, 1907 de Albert Einstein

RARE FIRST EDITION IN ORIGINAL WRAPS. Here "Einstein used the thermodynamic approach to fluctuations in Brownian motion to predict voltage fluctuations in condensers. To test his theory, he needed a new, highly sensitive instrument - more sensitive than the available electrometers, which could measure to a few thousandths of a volt. Einstein designed it, had it built, and famously called it his Maschinchen (Little Machine)" (Calaprice, 14). This paper is Einstein's description of his Little Machine. The machine is held with great affection in the physics community as an example of the experimental, practical side of the man who was the ultimate theorist. Three known versions of this machine are known to exist, at least one of which was used in an experiment conducted by Walter Gerlach. Weil 16. CONDITION & DETAILS: Leipzig: Barth. 1907. 4to. (8.5 x 6 inches; 215 x 150mm). Complete issue in original wraps. The wraps have some chipping along the edges (see picture). Blind stamp on the front wrap; barely visible. The front wrap remains attached, the rear present but detached. The interior is bright and very clean.