PURPOSE:To express the various characteristic phenomena of a plate tectonics theory three-dimensionally and time-transitionally by driving a pneumatic cylinder by a control signal and supplying energy to the front layer, base layer, etc., of a terrestrial globe. CONSTITUTION:A guide 108 which encloses a notch 46c of the movable base layer 4b in the Atlatic central part is provided on the rear face of the base layer 4b. South and North America continent part belts 44b1, 44b2 intruding to the inside from the notch 46c are bundled to one by a fitting 110a and the front end part thereof is connected by a fitting 110b to a wire 110c which is connected via the guide 108 to the pneumatic cylinder. The belts 44b1, 44b2 are smoothly extended from the terrestrial globe and are withdrawn therein when the pneumatic cylinder operates according to the control signal at this time. The length at which the belts are withdrawn in large in the Pacific south- east part and, therefore, a guide 112 enclosing the notch of the base layer 46a is provided to the rear face of the base layer 46a. The belt 44c2 of the South America offshore sea ridge part withdrawn into the inside from the notch is folded back in the guide 112 and is fixed at the end. This belt is then connected to the pneumatic cylinder by which the belt 44c2 is withdrawn.
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