they were putting the "brown note" to the test, supposably there is a not that will cause you to uncontrallably crap urself. but they didnt find that. they had about 16 15 insh speakers hitting at 154 db's outside. 1st it was 5 khz at 110 db. or some thing like that you need to watch that epesode to under stand it all. was pretty crazy though. the air that was moving was moving air in his lungs. pretty interesitng.