Physics and the Wright brothers

Question: What Physics did the Wright brothers use?

1. Elasticity in the construction of the framework of the plane
2. Stresses and forces in the construction of the framework of the plane
3. Knowledge of the operation of the internal combustion engine
4. Principles of fluid flow to get the correct shape for the wings to give lift
5. Power weight ratio to decide on the power of engine needed to lift a certain weight of plane