1.   A critical point of contention was the safety of the new circuit breakers the company installed because the old ones allowed electrical arcs.

2.   Even a low-level ignition source, like an electrical arc, could cause the metallized Mylar insulation to catch fire, the FAA found.

3.   If you see little electrical arcs, or hear a snap crack, there is high-voltage electrical leakage.

4.   Sparking lines can also form an electrical arc.

5.   The McNabb of last season was an electrical arc who put a buzz into every stadium he entered and jolted opposing defenses.

6.   This electrical arc vaporizes the Teflon and creates a plasma burst or pulse, which is violently ejected, creating thrust.

7.   NASA worries a spacewalking astronaut could be shocked and possibly killed by an electrical arc.