It is said often that longer versions of a ski will be stiffer than shorter versions. I've always wondered about that. It just doesn't sound right.
If I take two lengths of wood, one long and one short, prop these them both upright on the floor, hold the tops steady with one hand, and try to bend them by pressing on the middle with the other hand, the longer one of each pair will bend more easily. This works for lengths of pencil rod steel or flat sheet metal too. It's leverage that makes the longer one easier to bend.
So why aren't longer skis more easy to bend, since there's more leverage?
Do ski manufacturers make the components of longer versions of a ski thicker, or different in some other way, in order to assure that the increased leverage does not make them easier to bend?