 |
Gravitational Lensing Discussions of real Einstein rings and ring arcs caused by strong foreground gravitating masses, and pseudo-gravitational lenses that are probably foreground quasars producing multiple images by refraction when their jets are pointed our way. |
7 |
52 |
13 Feb 2012 23:28:52 by: n/a  |
Larry Burford, MarkVitrone |
|