Regarding infrasound and the Military... I know that during the sixties the 
French did extensive experiments around 7cps. Psychological effects as well 
as physical were well documented (though perhaps not all declassified)  They 
were using relatively low power too, if memory serves.   I may be able to 
dredge the specifics from my ancient cortex if you'd like.   Best Regards 
Mike, sw6079@.......  N7ORL

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