Associated with providing an emergency stop capability, a noticeable red button is often included on mechanical and electronic devices to allow for a rapid way to halt a machine that is seemingly ...

Person plugging something into a GFCI outlet with red and black buttons - Tomsmith585/Getty Images Have you ever noticed how some electrical outlets in your home look slightly different from the rest?

I was once this close to buying an entirely new refrigerator when ours stopped working. As I remember it, we had a power outage during a storm, and everything except the fridge came back online just ...

Have you ever noticed how some electrical outlets in your home look slightly different from the rest? Instead of a smooth plate, these outlets feature two small buttons, often colored black and red.