Tonight's photo: My attempt at art:) A previously posted photo that I played around with. At least I hope I did, otherwise it means my medication is stronger than I thought!This is something the over 30s may want to try.
The Sydney Morning Herald reports that, "enterprising teenagers have hijacked a high-pitched electronic blip which adults cannot hear and turned it into a stealth ringtone". Apparently the high-frequency pulsing sound can be heard by most people younger than 20 and almost no one older than 30.
It all started when a Welsh security company developed the 17-kilohertz buzz to help shopkeepers disperse youngsters loitering in front of their stores. The company quickly realised the potential youth market and has released its own official version.
Try it yourself here (if you set visualisations to bars and waves, you can see it, if you can't hear it).
I couldn't hear it - but a teenage girl walking past my window, dived into her handbag.
Wherever you may be - be safe
