What is the theory of relativity?
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The theory of relativity is actually two theories that Albert Einstein came up with in the early 1900s. One is called "special" relativity and the other is called "general" relativity.
Special Relativity. There are two main ideas that make up Einstein's theory of special relativity.
1. The principle of relativity: The laws of physics are the same for any inertial reference frame.
2. The principle of the speed of light: The speed of light in a vacuum is the same for all observers, regardless of their relative motion or the motion of the source of the light.
An example of relativity is:
Imagine two people on a train playing ping-pong. The train is traveling at around 30 m/s north. When the ball is hit back and forth between the two players, the ball appears to the players to move north at a speed of around 2 m/s and then south at the speed of 2 m/s.
Special Relativity. There are two main ideas that make up Einstein's theory of special relativity.
1. The principle of relativity: The laws of physics are the same for any inertial reference frame.
2. The principle of the speed of light: The speed of light in a vacuum is the same for all observers, regardless of their relative motion or the motion of the source of the light.
An example of relativity is:
Imagine two people on a train playing ping-pong. The train is traveling at around 30 m/s north. When the ball is hit back and forth between the two players, the ball appears to the players to move north at a speed of around 2 m/s and then south at the speed of 2 m/s.
babybianca:
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