Month: December 2021

How to stop a smoke detector from chirp when it’s not working

Smoke detectors work by emitting a low-frequency sound called an acoustical wave.The sound can be heard from miles away, but it can also be detected by a detector in your house.But some detectors don’t have enough power to see the sound from your own house, so you need to...

What do you think about the YouTube down detector?

The Washington Metropolitan Area Transit Authority is testing a new technology to detect videos that are being played back on a mobile device.A system that uses a camera embedded in the device to detect video plays back video on a display that displays the time and duration of the...