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Special relativity and steps towards general relativity - Wikiversity
(en.wikiversity.org)
This is a place to post freely available full-length lectures and courses of the sort available through MIT OCW. These are primarily intended for self-study and professional development.
Try searching for hashtags representing the subject (e.g. #math).
The dream of the fediverse is alive and well
@spaduf @boud it is pretty much here isn't it?