An Ultrasound Teen Repellent

A British inventor recently made the headlines with his invention: an ultrasound emitter that repels youths who can hear the annoying sound while adults cannot. He has successfully tested his product and already installed it near shops where unruly teenagers hung around and caused trouble.

http://www.ipr-helpdesk.org/newsletter/26/html/EN/espacenetQuiz.html

Originally posted by arrakis
A British inventor recently made the headlines with his invention: an ultrasound emitter that repels youths who can hear the annoying sound while adults cannot. He has successfully tested his product and already installed it near shops where unruly teenagers hung around and caused trouble.

http://www.ipr-helpdesk.org/newsletter/26/html/EN/espacenetQuiz.html

Originally posted by arrakis
A British inventor recently made the headlines with his invention: an ultrasound emitter that repels youths who can hear the annoying sound while adults cannot. He has successfully tested his product and already installed it near shops where unruly teenagers hung around and caused trouble.

http://www.ipr-helpdesk.org/newsletter/26/html/EN/espacenetQuiz.html

Originally posted by arrakis
A British inventor recently made the headlines with his invention: an ultrasound emitter that repels youths who can hear the annoying sound while adults cannot. He has successfully tested his product and already installed it near shops where unruly teenagers hung around and caused trouble.

http://www.ipr-helpdesk.org/newsletter/26/html/EN/espacenetQuiz.html

Originally posted by Nordlys
I heard about this a while ago on an autism mailing list. It sounds nasty. I really hope it becomes illegal. If it's loud enough to be extremely annoying for most teenagers, I can be almost sure that it would be very painful to me and other people who can hear those frequencies and are hypersensitive to sound. And if they install this near shops, not in shops, it would be impossible to avoid even if you don't visit the shop.

Originally posted by reader1107
I like this idea. Think of how useful it would be in a classroom!

Originally posted by Nordlys
Reminds me of those painful lessons when a video player was used, and the teacher didn't switch it off when we were not watching a film. 😕 I still find the high-pitch buzz of TVs extremely annoying, but now I am self-confident enough to ask people to switch them off when they are not in use.

Originally posted by arrakis
A British inventor recently made the headlines with his invention: an ultrasound emitter that repels youths who can hear the annoying sound while adults cannot. He has successfully tested his product and already installed it near shops where unruly teenagers hung around and caused trouble.

http://www.ipr-helpdesk.org/newsletter/26/html/EN/espacenetQuiz.html

Originally posted by reader1107
Ahh, we didn't have videos. I went in the dark ages of film strips.

So -- what about flourescent lights then? They buzz.

Originally posted by Nordlys
We didn't see videos very often, but it happened.

Fluorescent lights can be annoying (additionally, they often flicker, argh! ), but they are not as bad as TVs.

Some teachers have scented candles in their rooms. Is that a no-no?

(getting ready for two of my students)

Originally posted by reader1107
I like this idea. Think of how useful it would be in a classroom!

Originally posted by reader1107
Some teachers have scented candles in their rooms. Is that a no-no?

(getting ready for two of my students)

Originally posted by reader1107
Some teachers have scented candles in their rooms. Is that a no-no?

(getting ready for two of my students)

Originally posted by wormwood
you have kids there who actually want to be in the classroom?!?