A high-frequency sonic alarm created to stop troublesome teens from loitering in retail areas has been repurposed as a dance track and a mobile phone ringtone:
Merthyr Tydfil-based Compound Security released the "Mosquito" ringtone as a way of letting teenagers hear their phones ringing without adults knowing. It was developed because adults lose the ability to hear high-pitched sound.
But now the sound is being used in a dance track, Buzzin', with secret melodies only young ears can hear. The tune was developed after the success of the company's ringtone which was released in June. (...)
A condition called presbycusis, or ageing ear, means that by the time most people reach the age of 25, they cannot hear much above a frequency of 13 or 14 kilohertz.
Maria Farrell admits that comparing smartphones to abusive men (they try to keep you from friends and family, they make it hard to study or go to work, they constantly follow you and check up on you) might seem to trivialize domestic partner violence, but, as she points out, feminists have long been pointing out […]
Trump wants to roll back regulations that promote low-power light bulbs, even though at this point the industry has moved on and isn’t likely to do much in the way of modernizing incandescents. His interest is, as always, deeply personal: he thinks LED lights make him look orange. “The light bulb,” the president began. “People […]
Studies have shown cannabidiol (more popularly known as CBD) to be effective in two main areas: Pain relief and stress relief. Both of those make the non-psychoactive, cannabis-derived compound a natural for topical creams. There’s no shortage of CBD products out there, but here’s eight of our favorites, all specifically designed for dermatological use – […]
If you’re part of the maker community, you know Make:. Though Make: magazine is off the shelves as of this year, the eBooks and resources put out by Maker Media are still a fantastic resource for the new generation of tinkerers, hackers, and robotics geeks. If you’re in that tribe, listen up: they’ve released a […]
Life isn’t getting any less hectic, and pressure cookers are a quick, healthy solution for a growing number of kitchens. But if you thought your Instant Pot was versatile, there’s a major upgrade on the market: The Yedi 9-in-1 Total Package Instant Programmable Pressure Cooker. If you’ve somehow never used a pressure cooker before, try […]