This video demonstrates the basic principles of object motion and rotation in the Alice3 virtual environment. The key to understanding object motion in the Alice environment is recognizing that an Alice object exists in a virtual three-dimensional space. "In that space, an object has a specific location." " You might think of that position as X, Y, and Z coordinates" But the Alice system does not typically refer to these values. An Alice object can move freely in the environment. And can even collide or intersect with other objects in the scene. Every Alice object has a pivot point which is the point of reference for movement and rotation of the object. this pivot point is typically at the base of the object. "Every Alice object has an orientation," "a sense of its own forward direction," up direction and right direction. " An Alice object is absolutely self-centered," meaning that every objects motion or rotation is based on its own orientation. This concludes the video demonstration of the basic principles of object motion in Alice3.