To demonstrate circular standing waves in a pipe using sound waves and gas jets to indicate the pressure profile. May be useful when discussing the Bohr theory of the atom and the quantization of electron orbits.

To demonstrate that an object rolled down a U-shaped track will roll up to the same height as it was released. Also, if the object (Hotwheels car) is rolled down a hill onto a flat track, the object will keep rolling until it is acted upon by an outside force.

To demonstrate a model of gravity being the result of the curvature of space/time.

To demonstrate the independence of horizontal and vertical motion.

To demonstrate the flattening of 2 rings under the influence of the centrifugal force.

To demonstrate a piece of ferrite core memory from an old PDP11 computer.

To demonstrate the principles behind the Watts governor.

To demonstrate a cyclic chemical reaction, the Belousov- Zhabotinskii reaction.

To demonstrate Stokes law. This states that when a body moves through a fluid the viscous resistive force is proportional to the radius a and its velocity v.

To demonstrate that a large difference in pressure can create a propulsive force.