National Geographic Documentaries

How to Build a Volcano (2011x49)

Exibido em:: Ago 07, 2011

Science partners with Hollywood special effects to build the world's largest model volcano. The plan: Create a four-story-tall, 150-foot-wide volcano that can erupt and spew simulated magma and ash. Scientists test cutting-edge scientific theories on the model to learn more about one of the most volatile natural forces on the planet.