I think you are referring to a phenomenon called Nutation.
There are a number of hinge joints (not points): at each elbow, at each knee, interphalangeal joints (between the fingers) and at each ankle.
Cardinal points or Cardinal directions
The sub-cardinal points are the directions located halfway between the cardinal points on a compass. They include northeast, southeast, southwest, and northwest. These points provide more precise navigational guidance than just the four cardinal points.
The directions of north, south, east, and west are collectively known as cardinal directions.
Precession. This word is also used for the change in direction of the axis of other rotating objects, e.g. a spinning top.
I think you are referring to a phenomenon called Nutation.
This movement is known as axial precession, where the Earth's axis slowly traces out a circle over a period of approximately 26,000 years. This process causes changes in the orientation of Earth's axis relative to the stars over time.
There are a number of hinge joints (not points): at each elbow, at each knee, interphalangeal joints (between the fingers) and at each ankle.
what is a set of points that is endless in both directions
A standing wave is composed of nodes (points of no movement) and antinodes (points of maximum movement). It also has a wavelength, which is the distance between two consecutive points in phase (either a node or antinode). Standing waves are formed by the interference of two waves with the same frequency traveling in opposite directions.
Cardinal points or Cardinal directions
The four basic directions are north, west, south, and east.
It just means they are listening in different directions. They might just be inquisitive or they might be on the alert for danger.
Current will flow if there is a difference of potential energy and a path between those points.
Its ovious why a compass points in different directions. For example, if your going north, the compass points north because your going that direction. Theres also a magnet concealed in the compass. How does the compass know what direction yoiur going. Earth it self is a magnet. When you head that direction, it will point
The sub-cardinal points are the directions located halfway between the cardinal points on a compass. They include northeast, southeast, southwest, and northwest. These points provide more precise navigational guidance than just the four cardinal points.