M-22i Heat an evacuated tube with some mercury and glass chips. An optical projection system is shown. Disc 16-06 Glass chips float on a pool of mercury in an evacuated tube. Heat the mercury and the chips dance in the mercury vapor. Mercury is heated in a large evacuated tube causing pith balls to jump about.
Balls drop from a funnel onto a pan balance.
M-117 Pour lead shot onto the apex of a cone attached to a float. Vary the number and velocity of shot. 4D30.60 flame tube viscosity PIRA 1000 4D30.60 dependence of viscosity on temp. 4D30.60 dependence of viscosity on temp. As the tube on one side of a twin burner is heated, the flame becomes smaller.