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Dec 28, 2023

The secrets of Einstein’s unknown equation — with Sean Carroll

Posted by in categories: cosmology, information science, space travel

Did you know that Einstein’s most important equation isn’t E=mc^2? Find out all about his equation that expresses how spacetime curves, with Sean Carroll.

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This lecture was recorded at the Ri on Monday 14 August 2023.

00:00 Einstein’s most important equation.
3:37 Why Newton’s equations are so important.
9:30 The two kinds of relativity.
12:53 Why is it the geometry of spacetime that matters?
16:37 The principle of equivalence.
18:39 Types of non-Euclidean geometry.
26:26 The Metric Tensor and equations.
32:22 Interstellar and time and space twisting.
33:32 The Riemann tensor.
37:45 A physical theory of gravity.
43:28 How to solve Einstein’s equation.
47:50 Using the equation to make predictions.
51:05 How its been used to find black holes.

The real Einstein’s Equation is part of general relativity, which relates the curvature of spacetime to the mass and energy distributed within it.

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