Huh, I wonder if anyone's tried to validate this approach again now that we have LIGO (and presumably more precise equipment?). I know very little about the physics involved here, but the articles I found about Weber bars don't cite disagreement about the theory underpinning the experiment, so I'm curious if we expect a detectable effect with our current understanding?

I also know very little about manufacturing Weber bars, but I could imagine it's cheaper to build 100s or 1000s of these and perform signal processing on them than building another LIGO. Or Weber bars in space?

Just spitballing here