Cita Iniciado por Sheldon Ver mensaje
Por ejemplo, el de las "montañas flotante" es tan sencillo como que la geologia de dichas montañas tengan una magnetismo que generan una repulsión debido a la polaridad magnética con la geologia del planeta, y por eso estan "flotando", lo que científicamente se le llama levitación magnética (como el tren de alta velocidad japonés).

No parecen pensar lo mismo en Insultingly Stupid Movie Physics:



Although they were visually stunning the floating mountains were arguably the most ridiculous features in the entire movie. They were gigantic chunks of real-estate floating in the sky apparently suspended by some form of magnetic field. We surmised this from the fact that electronic instruments on all aircraft in the vicinity are driven crazy by the area's "high flux level", presumably a high magnetic flux level. Magnetic fields are also about the only available explanation. Other possibilities such as buoyancy, wind, and electrostatic forces are even more easily ruled out.
Unfortunately, the magnetic field strength needed to levitate mountains would have numerous disastrous side effects on the movie's story line, that is if the movie stuck to real physics. First such a field would rip magnetic materials out of aircraft if they flew into it, but that's just the beginning. Even if the aircraft had no magnetic materials in them, moving a conductive material of any type--magnetic or otherwise--through the field would create a large voltage difference across it. All electronic systems or controls, not just the navigation systems would be seriously disrupted. It's doubtful that an aircraft could fly in such conditions.
Since both the human brain and heart are conductive, both would have voltage differences generated across them by the motion of riding in an aircraft. Any variation in direction or magnitude of the magnetic field, even subtle changes from vibrations or body movements would induce random currents in the brain with an endless list of possible results including memory loss, hallucinations, psychotic events, and seizures. Randomly induced currents in the heart could result in fibrillation and death.
Strong carefully controlled magnetic fields are used for inducing currents in the brain as a treatment for depression. By comparison, the currents induce by flying around in a magnetic field strong enough to levitate mountains would be orders of magnitude larger and more random in nature. However, the floating mountains aren't the only questionable features on Pandora.

http://intuitor.com/moviephysics/index.html