Good morning LAU, as Cory Doctorow writes on Boingboing, John Huntington and his friends "created a spook-house with a double-blind randomized infrasound generator and used surveys to check for a correlation between infrasound and creepy feelings. John exhaustively documented the experimental setup (and the setbacks encountered in getting things up and running), and the results. Spoiler alert: they didn't find a correlation." http://www.boingboing.net/2010/11/08/testing-infrasound-t.html Have a nice day, - Burkhard