http://www.answers.com/topic/arthur-...cat=technology
"Further support came in 1924 when Einstein's prediction of the
reddening of starlight by the gravitational field of the star was
tested: at Eddington's request Walter Adams detected and measured the
shift in wavelength of the spectral lines of Sirius B, the dense white-
dwarf companion of the star Sirius. Eddington thus did much to
establish Einstein's theory..."

In fact, Eddington fooled Walter Adams into measuring the wrong
gravitational redshift. Details he

http://www.cieletespaceradio.fr/inde...-la-relativite

Pentcho Valev