Shape the surface morphology

The surface morphology is diverse and is the comprehensive result of internal and external geological processes. The internal force causes the surface to undulate, controlling the distribution of land and sea, as well as the configuration of mountains, plateaus, basins, and plains; External forces such as flowing water, wind, etc. continuously weather, erode, transport, and accumulate the surface materials of the earth's crust, ultimately forming various forms of the earth's surface. By stacking sand to create different terrains and elevations, different surface forms are formed, and a projector is used to project real-time onto the sand. At the same time, knowledge content such as contour lines and layered colored topographic maps can be understood.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.