These globes float and spin like magic! The globe consists of a transparent outer shell, enclosing an inner globe with the graphic on its surface. The thin space between the outer shell and the inner globe is filled with transparent liquids to buoyantly support the inner globe, completely out of touch with the outer shell. The optical properties of the fluid and outer shell are carefully chosen to cause the graphic on the inner globe to appear to be on the outside surface of the outer shell. When the inner globe turns it appears that the outer shell is turning too. The rotation of the inner globe is created by a magnetic drive within the inner globe powered by light passing through the graphic and illuminating very efficient solar cells within the globe. These globes on the plastic stand measures 9-3/4"T and they are 5-1/2" in diameter.