Detecting Gravity Waves ???

Bert asks,
Since LISA,and LIGO are trying to detect such very weak gravity waves
can we make use of them as telescopes to detect very weak light waves?

Bert, two entirely different regimes are involved here. Light (EM
radiation) is a transverse wave, while 'gravity wave' (GW) radiation is
longitudinal, that is, a compression-rarefaction wave exactly analogous
to a sound wave. A GW detector is actually a highly specialized acoustic
mircrophone. It's a wholly different critter than EM-detecting
telescopes.
LIGO is a ground-based GW 'microphone' system, which
handicaps it with having to contend with lots of tectonic/ seismic and
man-made noise. So what'd be ideal is a space-based system far away from
all this 'ground noise'. That's exactly what LISA is. Like LIGO, it's a
long-baseline interferometer, but out in a pure and pristine GW
environment. Here's a couple of nice sites on LISA (but note that a
clear-cut distinction is still not being made between gravitation and
'gravity waves')- http://spaceplace.jpl.nasa.gov/lisa_fact2.htm and
http://www.space.com/missionlaunches...es_000727.html

oc

Hi oc I posted that EM waves going through space can crowd out gravity
waves. The moon is so close,big,dense,and can lift and move the heavy
oceans of water,and yet we can't fallow the moon as it changes location
by detecting its waves. We know gravity waves can't be blocked. When the
sun,and the moon line up (eclipse) the sun only adds its gravity to the
moon. There could be a sameness here to neutrino waves,and gravity
waves. oc Thanks for those sites. Did you read that "what if" post
about string theory,as regards to Scott throwing experiments at us to
prove what we have to say? Bert

Hi oc I posted that EM waves going through space can crowd out gravity
waves. The moon is so close,big,dense,and can lift and move the heavy
oceans of water,and yet we can't fallow the moon as it changes location
by detecting its waves. We know gravity waves can't be blocked. When the
sun,and the moon line up (eclipse) the sun only adds its gravity to the
moon. There could be a sameness here to neutrino waves,and gravity
waves. oc Thanks for those sites. Did you read that "what if" post
about string theory,as regards to Scott throwing experiments at us to
prove what we have to say? Bert