posted on Dec, 1 2005 @ 07:16 PM
I still say there's just nothing to debunk. Set your computer to generate a specific frequency, and start raising it. Chances are, if you've been
around for a few decades, you'll stop hearing the tone around 16,000hz. Then bring in a teenager (leave a trail of stickers or poptarts leading into
the room) and do the same thing. They will probably stop hearing the tone around 18-20,000hz. If they've been rather humble with their music
listening habits, they may even perceive higher frequencies.
Generate one of these frequencies at an extremely high amplitude (a compact piezoelectric buzzer pushing 24volts should do it) and you've got
yourself one annoying sound that you (again, if you fit into the implied catagory) probably can't hear... but your kids can. Very well. Painfully
well. Toss in a few additional frequencies in bands that are particularly antagonising, and you've got this little gadget.