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The above is just the beginning of a story relayed by Tandy to one of the British dailies. The remaining part unfolds like a detective movie interspersed with scientific details.
Being a true researcher, Tandy decided to do research on the phenomenon and place it on the solid scientific grounds. Having become a “ghost buster” of sorts, he spent five years looking into all the stories related to ghosts observed in the old English castles. He lay in wait at night. He studied the readings of scientific equipment. Eventually, he learned from whence the ghosts came. He even put forth the reasons why the English happen to witness ghosts more frequently than the residents of other countries.
Read the full story at the link provided...very interesting
British Researcher Says Infrasonic Wave Sounds Create Ghosts