Quote:
Originally Posted by bojan
Steven,
thank you for the reply..
From it I gather that in the interaction between mass and gravitational wave, no energy is absorbed (unlike in case of EM waves)?
I would expect something like tidal effects due to gravitational field gradients that propagate through space/time.
Was that way of thinking in the core of Weber's idea (GW prompting the metal cilinder to vibrate at mechanical resonant frequency and picking those vibrations with piesoelectric sensors)?
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Strictly speaking it is not a tidal effect. The stretching and compression associated with a tidal effect is due to the action of a gravitational force acting in one direction. In a gravitational wave there are two "distinct forces" acting perpendicular to each other.
Weber was able rewrite the motion of test particles effected by gravitational waves using a model where a volume of space time is occupied with a elastic medium.
The medium is subject to deformation by the GW and in theory be detectable with piezoelectric sensors.
His ground breaking paper is here.
http://journals.aps.org/pr/abstract/...hysRev.117.306
Unfortunately there is a paywall.
Regards
Steven