Gravity waves seem to be the ultimate in hard-to-detect phenomena. Currently, we have a couple of rather large laser interferometers and a giant suspended pendulum looking for them, so far without success. Furthermore, astronomers have been busy observing variations on pulsar frequencies and the like as a way to use astronomical objects as gravity wave detectors. Then there are the next-generation detectors, all in various stages of development, that include space-based observatories, among other approaches.

Now we have another detector to add to the list. A team of researchers from Japan and Germany have proposed a new way to detect gravity waves. The big news is that, compared to the others, it is a lot simpler, probably a lot cheaper to build, and nearly as sensitive.

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Cheap and cheerful gravity wave detector on the horizon