I was talking to a friend and he said "wireless internet should have a lower ping because it uses radio and nothing goes faster than light". While I agree with his statement about light being pretty fast, could it be possible for electricity to be even faster than light, in a non-conventional sense? Read on, I'll explain. Electricity flowing through a wire is not similar to a bullet traveling down the barrel of a gun. It's more like those balls on strings you see in gift shops. 5 balls are hanging from the frame, all touching. You let one ball swing and hit the other 4, and the only ball that moves is the one at the end. Electricity is the same deal. When you apply a voltage across a wire, the electrons added to the wire on the negative side do not need to travel the entire length of the wire before lighting a bulb on the other side. With this concept in mind, what if the cable was 1 light-year in distance? Would the wire have a measurable amperage in less than 1 year after pulsing a voltage? If so, wouldn't this show that electricity is faster than light, even though no single electron is traveling that speed? edit: maybe an example would help Suppose the ultimate speed limit of the universe was 10 per second (units don't matter). I have a tube of length 20. Inside this tube is a series of elastic balls which fill up a distance of 15. If I hit the balls on one end, the kinetic energy moves to the last ball which starts to move at a speed of 5, and travels a distance of 5. The overall time from when I hit the balls to when the last ball reaches the end of the tube is 1 second. The speed of the actual ball was 5 per second, speed limit of the universe is 10 per second, the speed of the signal I just sent is 20 per second (20/1 = 20).