## Elementary Derivation of the Equivalence of Mass and Energy

*"The result of this consideration is therefore as follows. If for collisions of material points the conservation laws are to hold for an arbitrary (Lorentz) coordinate-system, the well known expressions for impulse and energy follow, as well as the validity of the principle of equivalence of mass and rest-energy."*

FIRST EDITION IN RARE ORIGINAL WRAPPERS of one of Einstein's most complete proofs of his most famous equation, e=mc2; the text of the prestigious Gibbs Lecture, delivered at Pittsburgh on December 28, 1934.

Einstein "gave two proofs [of e=mc2] in his later years. In 1934 he gave the Gibbs lecture in Pittsburgh and deduced [e=mc2] from the validity in all inertial frames of energy and momentum conservation for a system of point particles. In 1946 he gave an elementary derivation in which the equation for the aberration of light and the radiation of pressure are assumed given" (Pais, *Subtle is the Lord*, 148).

IN: Bulletin of the American Mathematical Society, Vol. XLI, No. 4, pp. 223-230. Menasha, Wis., and New York: The American Mathematical Society, April 1935. Octavo, original wrappers. Spine a little faded and a hint of wear at spine ends; generally fine. Rare in wrappers.

**Check Availability:**

P: 212.326.8907

E: michael@manhattanrarebooks.com