Originally Posted by folkhemmet

Here's an interesting paper ([url]
Caution! Before everyone gets too excited about my last point, note what a scientist involved in one of the gravitational wave experiments recently said about gravitational wave detection (from http://www.wired.com/science/space/n...tional_waves):

"And now LIGO scientists have begun searching their data for this gravitational wave signature. If scientists continue to detect nothing, however, Einstein's theories may well need modifying.

"If we don't see anything in four years," Foffa said, "then it will be the time to start questioning."