Imagine you are making a paper airplane. You fold the wings down to make it fly straight. But what if you wanted to turn the plane to the left or right? You would need to twist or warp the wings, so one side goes up, and the other goes down. This is kind of like wing warping, which is how some old airplanes were built to turn left or right.
Wing warping was a way to change the shape of the airplane's wings so it could bank or turn. The pilot would turn a wheel or move a lever, which would pull on wires connected to the wings. When the wires moved, the wings would twist, and the airplane would turn. Think of it like twisting a rubber band to make a toy airplane fly up in the air.
But why don't we use wing warping anymore? Well, as airplanes got bigger and faster, wing warping became a problem. If the pilot twisted the wings too much, the airplane could break apart. Also, airplanes needed to be more stable in the air, and wing warping made it more challenging to control them. Today, most airplanes use ailerons, which are small flaps on the wings that move up and down to make the plane turn, without twisting the whole wing.
So, in summary, wing warping is a way to twist an airplane's wings to make it turn, like twisting a paper airplane in your hand. But it's not used anymore because it's not safe for big planes, and modern airplanes use ailerons instead.