Phys. Rev. Lett. 20, 1307–1308 (1968)Gravitational-Wave-Detector EventsReceived 4 April 1968; published in the issue dated 3 June 1968 A new series of experiments is described, involving two gravitational wave detectors spaced about 2 km. A number of coincident events have been observed, with extremely small probability that they are statistical. It is clear that on rare occasions these instruments respond to a common external excitation which may be gravitational radiation. © 1968 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.20.1307
DOI:
10.1103/PhysRevLett.20.1307
PACS:
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