A LEAF OF MANUSCRIPT FROM ONE OF EINSTEIN'S MAJOR
PAPERS.
"Einheitliche
Theorie von Gravitation und Elektrizitat" marks
Einstein's second significant attempt to unify gravity
and electromagnetism within a single field theory.
Though almost identical in name to his first (1925)
paper on the subject, this work contains a profound
theoretical departure from his initial attempt. Whereas
his initial papers (and also his post-1940 papers)
attempted unification by the alteration of the geometry
of space-time, this paper manipulates the dimensionality
of space-time: working with the five-dimensional space-time
of Theodor Kalzua, Einstein introduces a five-dimensional
vector space at each point of the space-time manifold.
As
in so many other areas of physics, Einstein's work
on Unified Field Theory anticipated, and paved the
way to, the future of Science: though Einstein was
not himself able to achieve success with this model,
Kaluza unification theory is once again in vogue with
theoretical physicists.
Autograph
material from Einstein’s major scientific papers
is Rare.
