Nedvěd Sr., Rudolf
© Toth-Maatian Review — Dr. T. E. Phipps, Jr. gift
binary stars, de Sitter, ballistic theory, Ritz
The periodical shift of spectral lines in the light of binary stars as an evidence of the approach and recession of their components is known. The ballistic hypothesis of Ritz relative to light, incited the search for doubling of lines. De Sitter’s authoritative attitude (1913, Physik. Zeitschrift) which was that of an astronomer was entirely overhasty and irresponsible. The analysis of Mathias (1939, Ph. Z.) of this phenomenon, although correct, led its author to entirely wrong conclusions. The negative finding became then one of the main pillars of Einstein’s theory. The following analysis shows on which errors those conclusions were based.