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Comment by Jordan Leigh on June 18, 2010 at 4:50pm
That was fascinating! Another possible explanation for ghost experiences is infrasound, which is a very very low frequency of sound used in many ways. Infrasound, at 18.9Hz, will actually cause the eyes to vibrate slightly, giving the image of a "ghost".
Comment by darwinlover on June 19, 2010 at 8:51pm
very interesting! one ill be sending my fellow non believers. thanks for the link

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