Introduction to Solid-State Chemistry
Sadoway's legendary chemistry of real materials — batteries included.

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Sadoway's legendary chemistry of real materials — batteries included.
The most-watched mathematics course ever recorded.
Sorting, searching, hashing — the engine room of computer science.
The legendary Oppenheim lectures — Fourier, sampling, and everything after.
Supply, demand, and the logic of markets — from MIT's Economics department.
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Gilbert Strang's complete calculus textbook — the companion to his famous 18.01 lectures, free from MIT chapter by chapter.
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The chemistry of energy — MIT's foundational physical chemistry course.
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Cosmology's first three minutes — taught by the man who named inflation.
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How the brain builds a world from light and sound — MIT Brain and Cognitive Sciences on the machinery of perception.
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Herbert Gross's beloved 1970s refresher — vectors, partial derivatives, and multiple integrals, humanely taught.
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Strang's short course on the big picture of calculus — derivatives in five minutes, truly.
Two thousand years of Chinese history in one MIT course — from the Qin unification to the last emperors, taught with primary sources.