A mechanical toy having two enclosed chambers, one positioned above the other, connected by a tube; a vaporizing medium contained within the enclosed chambers and tube; an object within each chamber to displace the vaporizing medium; a rotational shaft centrally connected to the tube and chambers; support arms connected to ends of the rotational shaft at bearing points; means for exciting the vaporizing medium within the lower chamber to create an increase in vapor pressure within the lower chamber relative to the upper chamber that exerts force upon the vaporizing medium within the lower chamber to communicate the vaporizing medium through the tube into the upper chamber, displaced by the object within the upper chamber creating an imbalance, allowing gravity to act upon the upper chamber when a sufficient amount of the vaporizing medium has collected within the upper chamber pulling the upper chamber downward around the rotational shaft in the direction of the imbalance.