Evaporating water can cool the head of a novelty store drinking bird, causing it to tip over and drink.
A magnet floating above a superconducting pellet is spun in order to show the dynamic response of the magnetic field expulsion.
At higher temperatures, a magnet is shown to rest on top of the superconducting pellet. Once the pellet is cooled sufficiently, the magnet levitates above the pellet.
A 1-2-3 yttrium barium copper oxide superconducting pellet is cooled in liquid nitrogen and placed on an inverted foam cup. When a magnet is placed above the pellet, it is levitated by the superconductor.
The liquefaction of carbon dioxide is shown. In Part 2, the valve is closed and the pressure in the tube builds until all three phases of carbon dioxide are present.
The liquefaction of carbon dioxide is shown. In Part 3, the pressure in the tube continues to rise until the valve is opened, at which point the pressure drops and the liquid changes to solid.
The liquefaction of carbon dioxide is shown. In Part 4, an animation is used to illustrate the correlation between phase and pressure.