I'm studying Curl. And I would like to know if Curl can be correctly understood this way. Imagine a spanner. It's mouth is A and the end is B. Imagine if the spanner was a vector pointing from A to B. If a torque acts on it the spanner will rotate. Can curl be understood as something like a torque that acts on the spanner (vector) when the mouth "walks" in the direction of the vector?