“Celluloid” tumbler

[“Celluloid” tumbler]

“Celluloid” tumbler, clear, 5.2 cm high, 2.2 cm thick and 2.5 cm wide
The tumbler is also known as “unstoppable”, which means that no matter how hard you lean, the tumbler always stands up and does not fall. The standing posture in the shaking is very handsome. The tumbler uses the principle that objects with low potential energy are relatively stable. The clay is used as a counterweight at the bottom of the semi-circle of the toy. When the tumbler is pressed, the center of gravity of the base is raised, resulting in an increase in potential energy. When the external force disappears, the tumbler will naturally return to its original position. There are also tumblers in traditional Chinese toys, which are made of natural materials such as mud and paper. The texture of these pieces is smooth “celluloid” (plastic), which shows the characteristics of the times