Formulate the postulates of the theory of relativity.

All physical phenomena under the same initial conditions proceed in the same way in all inertial reference frames.
The speed of light in a vacuum is the same in all directions and does not depend on the movement of the source or on the movement of the observer.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.