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ALBERT EINSTEIN * PSA * Autograph THEORETICAL PHYSICS Signed * Rik = 0 Equation
$12,500.00
Guaranteed Authentic
EINSTEIN SIGNED SPANISH LANGUAGE THEORETICAL PHYSICS PAMPHLET EPLORING A CENTRAL TENANT OF RELATIVITY "Rik = 0"
Legendary theoretical physicist ALBERT EINSTEIN authentic autograph special publication of Einstein's Spanish-language paper "Demonstration of the non-existence of gravitational fields with a non-vanishing total mass free of singularities" published in an Argentinian scientific journal in 1941, signed, inscribed, and dated by Albert Einstein on the front cover, "To Dr G. [G]arcia with kind greetings / A. Einstein 1943." Superb content signed by Einstein with dozens of printed equations and regarding theoretical physics.
The recipient, Godofredo Garcia (1888-1970), was a Peruvian mathematician and the author of dozens of books on various advanced mathematical and scientific subjects.
Working on a Unified Field Theory, Einstein attempted to explain gravitation and electromagnetism within one set of laws. The offprint is a redacted version of the actual magazine issue, and includes the front cover, table of contents, with Einstein's article appearing on pages 5-9. On page 8, Einstein refers to the equation Rik = 0. Rik = 0 is perhaps the second most recognized formula associated with Albert Einstein after E = MC2. Rik = 0 was the "simple formula" that Einstein famously scrawled on a chalkboard following Dr. Gustaf Stromberg's astronomy lecture at the California Institute of Technology's Mt. Wilson Observatory in Pasadena, California on January 14, 1931, posing it in relation to an attempt to calculate the density formula of the Milky Way.
The Einstein autograph pamphlet has been thoroughly reviewed and CERTIFIED AUTHENTIC BY PSA/DNA Authentication Services expert examination. UNCONDITIONALLY GUARANTEED GENUINE. Purchase includes full PSA/DNA Letter of Authenticity.
Condition is as shown. Expected wear including toning, scattered foxing, and minor chipped edges, else near fine. Housed in a custom blue leather folder measuring appx. 9" x 11.5" x .5."
Own a remarkable, original piece of Scientific history! Perfect for the aspiring scientist, Mathematician, autograph enthusiast, or history buff.
Sold as is, as shown.