I don't know what phenomenon that is, probably fairly normal, but no idea really. A gravity wave, as much as I understand it, is a near light speed
small compression of spacetime itself. I think.
[edit on 3-6-2007 by apex]


In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two mediums (e.g. the atmosphere or ocean) which has the restoring force of gravity or buoyancy.
en.wikipedia.org...
Originally posted by junglelord
you know google is an amazing device
try this
type in gravity wave
hit search
and voila
[edit on 4-6-2007 by junglelord]