Two wires are used to connect a light bulb to a battery. Wire 1 is connected to the positive terminal of the battery and wire 2 is connected to the negative terminal of the battery; the bulb is then connected between the free ends of wires 1 and 2. The bulb has a very large resistance compared to either of the wires; the two wires have the same (small) resistance. In this circuit, where is the current big, and where is it small?

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me