This apparatus is unique in that the magnetic platform can be placed inside the globe, used by itself, or you can place something as heavy as 12 oz. on the platform.  Also, with the stand attachment, you can turn the base on its side and the platform will still remain in place.  If everything is balanced correctly the globe/platform will slowly rotate.

The small globe will float above the curved plate when positioned correctly.  This will not turn like the above globe.

Place the apparatus on the table and turn on the power.  Place the globe between the base and the top yolk of the demo and move gently up and down until you feel the globe is in equilibrium.  Let go and the globe should float in that position.  The base also has a mechanism for rotating the globe.  A gentle spin in the CCW direction is all that it necessary to start the globe in continuous spin mode.

Put a small magnet onto a battery with the pole orientation such that the magnet is attracted to the coil when the unit is on.  You will need to adjust the variable pot very carefully to find the sweet spot where the magnet/battery unit will float under the coil.  Complete directions for this unit are in the box in which the unit is stored.