Categories: Alternative conceptions
An example of a historical scientific idea which would today be considered an alternative conception,
"Olaus Roemer had demonstrated, form a study of the eclipses of Jupiter's satellites, that the speed of light was finite though very great, which lent observational support to Flasmsteed's idea that the universal aether may be denser nearer the Sun and rarer farther away from it."
Eric G. Forbes (1975) Introduction, in The Gresham Lectures of John Flamsteed, London: Mansell Information Publishing Ltd.
