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Special Relativity


Get up to (light) speed on Einstein's theory of relativity.


Beginning with famous thought experiments and a few intuitive principles from Newtonian mechanics, this course closely follows Einstein's arguments leading to the epiphany that time and space are a single entity, spacetime, where physical processes unfold.

After gaining experience with the mathematical machinery of relativistic physics, you will open the door to high-energy phenomena and Einstein's famous relationship, E = mc². In the end this course will boost you to the cusp of the most elegant of physical theories: general relativity.

What is this?
A collection of interactive quizzes that presents Einstein's theory of relativity from its fundamental principles. Each quiz is written by experts and guided by Brilliant's Principles for Learning.

Who is this for?
This course is for people who would like to become more familiar with modern physics using only some knowledge from Newtonian mechanics.

What should I know?
You’ll need a fundamental understanding of Newtonian mechanics.

What's inside?
About 15 quizzes, containing over 200 carefully crafted, guided problems and explanations.


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