Principle of Relativity and Speed of Light
The Principle of Relativity
As soon as you accelerate or curve- or do anything that changes the nature of the motion in any way-Special Relativity ceases to apply.
Principle of Relativity: Laws of Physics doesn't change even for inertial objects. In the real world, there exists no such state of absolute rest. That's the content of the so-called principle of relativity, which is one of the basic postulates of the special theory of relativity. According to this principle, the following holds: Whenever an inertial observer in his space station performs an experiment, any other inertial observer who has constructed exactly the same experimental setup in his own space station will get the same result.
Principle of the Speed of Light: The Speed of Light is the same for all observers. Although we usually think of lengths and times as absolute, they turned out to be observer-dependent. The shoe is on the other foot. Ordinarily, we think of velocities as relative, but one of them turns out to be absolute: the speed of light.
Principle of Relativity: Laws of Physics doesn't change even for inertial objects. In the real world, there exists no such state of absolute rest. That's the content of the so-called principle of relativity, which is one of the basic postulates of the special theory of relativity. According to this principle, the following holds: Whenever an inertial observer in his space station performs an experiment, any other inertial observer who has constructed exactly the same experimental setup in his own space station will get the same result.
Principle of the Speed of Light: The Speed of Light is the same for all observers. Although we usually think of lengths and times as absolute, they turned out to be observer-dependent. The shoe is on the other foot. Ordinarily, we think of velocities as relative, but one of them turns out to be absolute: the speed of light.