Electricity is all around us, and even inside us. The presence of electricity has really skyrocketed in the past century, however, with the development of electronics. Today, our homes and communities ...

I have noticed ever since I have had my 1ghz alpb, sometimes when it is plugged into the wall, I can hear a low level electrical hum coming from the powerbook. When I unplug the ac, it goes away, ...

Electrical hum is the most common source of background noise in electrophysiology experiments. It is caused by the alternating current (AC) of the electrical mains, delivered via power outlets. This ...

The Metropolitan Police is using the "hum" of background noise produced by mains electricity to help solve crimes, it has been disclosed. Officers in the force have compiled a database of the noise, ...