HyperPhysicshttp://hyperphysics.phy-astr.gsu.edu/hbase/index.htmlThe Feynman lectures on physicshttps://www.feynmanlectures.caltech.edu/Landau and Lifshitzhttps://archive.org/details/landau-and-lifshitz-physics-textbooks-seriesstring theory FAQhttps://ncatlab.org/nlab/show/string+theory+FAQ
>>16964178
>>16964178are david tongs lecture notes good?alos what's the red thing in between her cheeks
https://phys.libretexts.org/This is a good one, if nothing then for its breadth of topics, but it has the most obnoxious user interface ever!
This is egregious.