Authors:	Sauer, Tilman
Title:	Soldner, Einstein, gravitational light deflection and factors of two
Online publication date:	11-Nov-2022
Year of first publication:	2021
Language:	english
Abstract:	The Newtonian value of 0." 84 for the gravitational deflection of a ray of light from a distant star, grazing the rim of the Sun, was derived already in 1801 by Johann Georg von Soldner. The same value was obtained by Albert Einstein in 1911 on the basis of the equivalence principle alone. Four years later, Einstein predicted twice that value on the basis of the full theory of general relativity, a value that was later confirmed by observation. A direct comparison of Soldner's and Einstein's works is obscured by a confluence of various factors of 2, arising both from different conventions and from printing errors.
DDC:	510 Mathematik 510 Mathematics 530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8081
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY-NC-ND
Information on rights of use:	https://creativecommons.org/licenses/by-nc-nd/4.0/
Journal:	Annalen der Physik 533 8
Pages or article number:	2100203
Publisher:	Wiley-VCH
Publisher place:	Berlin
Issue date:	2021
ISSN:	1521-3889
Publisher DOI:	10.1002/andp.202100203
Appears in collections:	JGU-Publikationen