Apparently, this user prefers to keep an air of mystery about them.
11 What is the capture cross-section of a black hole region for ultra-relativistic particles? jan 27 '13
5 'Negative pressure' counteracting gravity? may 11 '13
5 Do partial derivatives commute on tensors? jan 31 '13
5 What exactly are we doing when we set $c=1$? jan 21 '13