In an ironic turn of events, an invention that was designed to drive youths away is now attracting them in droves.
Late last year a Welsh company developed the Mosquito box, a device that emits a high-pitched noise found to be most annoying to young people whose high-frequency hearing is still at its peak. It found a market as a "security device" -- mainly for shopowners who hoped it would keep unruly gangs from loitering in front of their establishments. (Apparently, roving packs of wild dogs are not a problem in Wales.)
The Mosquito Box soon attracted the attention of the Americans who signed a huge distribution deal in May of this year.
But the biggest spread of the technology today seems to be amongst schoolkids who have found they can use the "Teen Buzz" as a mobile ringtone (or SMS notification) -- one their teachers are for the most part unable to hear. We know phones are supposed to be switched off in class, but isn't that what vibrating alerts were developed for?
If you'd like to test your own ability to hear the Teen Buzz, click here.