My favourite exhibits are those that you can just sit and watch, like staring into a fire, or watching a river flow. This is one of those, and a dramatic demonstration of how and why materials change states between solid liquid and gas. With just a little energy in the system the 'atoms' hold their lattice formation. Adding a little more energy starts to break the bonds and atoms intermix but they are still held down by gravity. Even more energy and the atoms fly apart filling the chamber as a gas would but if you look close they still form bonds but quickly break them again. A never-been-done-before Mystus original.