8B30.43 - Magnetic Field Collapse
To demonstrate what happens to magnetic fields during the collapse of ionized gas clouds.
Pull out a bench rod and bench clamp, two medium length rods, two black rod clamps, five bungee cords, and 10 rod hooks. Attach the bench clamp to the bench and then mount the bench rod vertically in the clamp. Attach the two black rod clamps spaced apart longer than the bungee cords. Attach the two rods into the rod clamps and then attach the 10 hooks; 5 on top and five on bottom. Attach the bungee cords.
Squeeze the bungee cords inward to show collapsing of the magnetic flux lines.