From: Amara Graps (amara@amara.com)
Date: Fri Jul 16 1999 - 13:23:52 MDT
Brian Atkins (brian@posthuman.com)
Thu, 15 Jul 1999 23:50:22 -0400
>Ocean/lake waves do not get their energy from gravity. They get it from
>>sustained winds or from earthquakes.
The seismologists are interested in several kinds of waves,
acoustic waves, for which pressure is the restoring force, gravity waves,
for which buoyancy is the restoring force, and surface gravity waves.
Keeping track of all of these waves can get really complicated in objects
like stars. See: http://soi.stanford.edu/results/heliowhat.html
Now about gravitational waves, you may be interested in this:
THE DETECTION OF GRAVITATIONAL WAVES
http://www.gravity.pd.uwa.edu.au/DetGW/DetGW.htm
The document exists in rtf format. The following is from there.
The idea about gravitational waves are that gravitational charges
exist analogous to electric charges. But the gravitational radiation
is very weak, and it will be observed far from the emitting
region. And because there is no physical way to distinguish between
the inertial and gravitational acceleration of a single test mass,
only relative accelerations ("tidal") between two or more
masses can be attributed to gravitational fields.
Also some other physical situations may produce detectable
gravitational radiation: asymmetric collapse of massive objects,
such as the formation of massive black holes from stellar collisions
and coalesence in globular clusters and in galactic nuclei.
Amara
***************************************************************
Amara Graps | Max-Planck-Institut fuer Kernphysik
Interplanetary Dust Group | Saupfercheckweg 1
+49-6221-516-543 | 69117 Heidelberg, GERMANY
Amara.Graps@mpi-hd.mpg.de * http://galileo.mpi-hd.mpg.de/~graps
***************************************************************
"Never fight an inanimate object." - P. J. O'Rourke
This archive was generated by hypermail 2.1.5 : Fri Nov 01 2002 - 15:04:30 MST