👉 In physics and engineering, a "backstick" is a type of object that has no contact with its surroundings. It is typically used in conjunction with other objects to create a stable and rigid structure or system. For example, in a mechanical engineering setting, a backstick might be used to create a framework for a robot arm, where the robot can move in a specific way without being affected by external forces. The backstick allows for precise movement of the arm while keeping it stationary. In physics
