There is a relatively new device called "The English Mosquito" which is being used in England to control where young people typically gather. The device works by emitting high-frequency sounds that only young people (typically younger than 20 years of age) have the ability to hear. Because it's fairly annoying, it causes young people to eventually leave a particular area. Human right's groups are obviously unimpressed with the blanket use of the devices: Aynsley-Green said about 3,500 of the devices are in use across England to split up gatherings of youth in areas such as parks and ...

As of October of 2007, Apple has sold approximately 120 million iPods worldwide. At approximately $250 each, that's $30 billion dollars in revenue. It is without a doubt one of Apple's crowning technical achievements, both for the ingenuity of the hardware and for the revolutionary integration with software on several platforms. And yet lately, as I've trekked the 30 minute walk between my home and work with my iPod blaring away, I've started to wonder what the impact of this technology really is. For starters, those of us who listen to iPods frequently are subjecting ourselves to potential hearing ...