Was Crocodile stronger at Marineford? Or was he holding back in Alabasta?

 During the Alabasta arc, Crocodile displayed a level of power that was initially considered overwhelming by the Straw Hat Pirates. He possessed the Logia-type Devil Fruit called the Suna Suna no Mi (Sand-Sand Fruit), which granted him the ability to control and transform into sand. He had a reputation as a Shichibukai and controlled the desert kingdom of Alabasta from the shadows. His strength was showcased through his battles with Luffy and others. At Marineford, Crocodile was present as part of the war that took place at Marine Headquarters. While he did participate in the battle, he didn't display the same level of dominance as some other powerful characters present. This has led fans to speculate that he might not have been as strong as initially portrayed in Alabasta. It's important to note that power scaling and character abilities can be subject to interpretation and development by the author. Oda often keeps details deliberately open-ended to keep the story intriguing.

What is Arkemidies Law?

 Archimedes' principle, also known as Archimedes' law, is a physical law that states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. This principle was first stated by the ancient Greek mathematician and scientist Archimedes in the 3rd century BCE.

The principle of buoyancy is based on the idea that when an object is submerged in a fluid, it is buoyed up by a force that is equal to the weight of the displaced fluid. This buoyant force acts in the opposite direction to the force of gravity, and the net force on the object is determined by the difference between the buoyant force and the force of gravity.

The principle of buoyancy has a wide range of practical applications, including in the design of ships and other floating structures, in the measurement of the density of objects and fluids, and in the analysis of fluid flow. It is also a fundamental principle in the field of fluid mechanics, which studies the behavior of fluids and the forces acting on them.