Hot on HuffPost Parents:
Robin Wilson: Pregnant Women Deserve Courteous Behavior
Father Of Prisoner Of War Promises Captive Son 'You Will Come Home'
high freqency
Stores use sonic sounds to chase away children
When I first read this story, I thought it was a joke. The very idea that there are high-frequency sounds that children care hear that adults cannot is news to me. But apparently it is true, and some shops in London are using that sound to drive ...
85
COMMENTS











