Electricity means the presence or motion of electrical charge. When the charge is moving from its source (origin) to sink ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Q How does electricity move through wires? — Mollie Bryan, Madison, Wis. A Dan Ludois, professor of electrical and computer ...

Most people have a phone charger plugged in next to their bed, which they never bother to switch off at the wall - but is that risky to do?