Warp Speed
Frank Close: Gravitational Waves, 7 February 2008
Travelling at the Speed of Thought: Einstein and the Quest for Gravitational Waves
by Daniel Kennefick.
Princeton, 319 pp., £19.95, May 2007,978 0 691 11727 0 Show More
by Daniel Kennefick.
Princeton, 319 pp., £19.95, May 2007,
“... forced to concede. The question now became: what causes the secular acceleration of the Moon? Pierre-Simon Laplace discovered in 1776 that orbits would eventually degrade if, in contrast to Newton’s theory of instantaneous action at a distance, gravitational forces took time to propagate. Laplace’s insight was that the cumulative effect of the planets ... ”