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6 comments

[–] [Deleted] 2 points (+2|-0)

this high frequency can be heard by young people 13 to 25 years old," and reaches as far as 130 feet ... and treat them as unwanted birds or pests.

Philadelphia, 13 to 25 year olds; they are leaving out another important part of the demographic that makes this necessary. We've all seen the stories and videos that have been coming out of Philly, Chicago, and Baltimore. Good for Philly trying to do something about it.

[–] smallpond [OP] 1 points (+1|-0)

We've all seen the stories and videos that have been coming out of Philly, Chicago, and Baltimore.

Surely not everyone has: throw up a link?

[–] [Deleted] 1 points (+1|-0) Edited
[–] smallpond [OP] 0 points (+0|-0)

Thanks, good for context.

As far as trying to do something about it, I don't think this counts. Trying to repel youths like mosquitoes and possibly damaging small children in the process:

A health regulator in Germany reported that although the risk to teenagers is "relatively low," for smaller children there is a risk from lengthy exposure, with adults unable to hear and move away. "The onset of dizziness, headache, nausea and impairment is to be expected."

is obviously doing absolutely nothing about the underlying social problems causing this.