Einstein's postulates
Einstein's postulates are foundational ideas for his theory of relativity. The first postulate states that the laws of physics are the same for everyone, regardless of their constant speed or direction—this means no observer is favored over another. The second postulate asserts that the speed of light in a vacuum is constant for all observers, no matter how fast they are moving. Together, these ideas revolutionized our understanding of space and time, showing they are interconnected and can change depending on relative motion. This fundamentally altered physics, emphasizing the role of the observer in measurements of time and distance.
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Einstein's Postulates are the foundations of his theory of relativity. The first postulate states that the laws of physics are the same for all observers, regardless of their relative motion. This means no one can claim to be in a "special" state of motion. The second postulate asserts that the speed of light in a vacuum is constant for all observers, no matter how fast they are moving. These ideas challenged traditional views of time and space, leading to a deeper understanding of how the universe operates at high speeds and in strong gravitational fields.