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Energy

A short course on energy treated as a feature of matter with a value, rather than as a mysterious substance in its own right. There is no free-floating energy off by itself; energy is always the energy of something.

13 sections
CK admin

The sections below are arranged in the order we suggest, and the highlighted one is where we recommend you begin. But learning is not linear. Open any section in any order, return to earlier ones whenever you like, and treat the sequence as a recommendation rather than a track.