Aletheia4u
Gold Member
- Feb 3, 2017
- 7,745
- 1,384
I have been hearing a faint sound at times. It sounds like this in the link below. And it does gives me headaches.
In Philadelphia, 30 parks and recreation centers are outfitted with a small speaker called the Mosquito. It blares a constant, high-pitched ringing noise all night long — but one that only teenagers and young adults can hear.
Anyone over age 25 is supposed to be immune because, basically, their ear cells have started to die off.
Philadelphia parks officials have been installing the device since 2014, reported WHYY's Billy Penn, intending to shoo rowdy youths from the premises.
Can You Hear It? Sonic Devices Play High-Pitched Noises To Repel Teens
In Philadelphia, 30 parks and recreation centers are outfitted with a small speaker called the Mosquito. It blares a constant, high-pitched ringing noise all night long — but one that only teenagers and young adults can hear.
Anyone over age 25 is supposed to be immune because, basically, their ear cells have started to die off.
Philadelphia parks officials have been installing the device since 2014, reported WHYY's Billy Penn, intending to shoo rowdy youths from the premises.
Can You Hear It? Sonic Devices Play High-Pitched Noises To Repel Teens
