According to this principle, people use it to maintain their direction. The direction of the axis of rotation of a rotating object does not change when it is not affected by external forces.
The gyroscope sensor was originally applied to the helicopter model and has been widely used in mobile portable devices such as mobile phones. These operations can be easily implemented when you are speaking or leaving the table. When you mouse over the imaginary plane, the cursor on the screen moves, and you can circle and click the button around the link.
For those unfamiliar with such products, the gyro sensor is an easy-to-use positioning and control system based on free-space movement and gestures.