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Yale, Stanford, MIT, Cornell, and many other universities around the world have introduced free open courses in subjects like physics, biology, and chemistry. In many cases, there is a semester’s worth of recorded lectures, along with exams to test your knowledge. If you have ever wanted an Ivy League science education, here’s your chance!
Pocket : Carl Sagan’s Undergrad Reading List: 40 Essential Texts for a Well-Rounded Thinker
theatlantic: Carl Sagan’s Reading List Few are the heroes of modern history more successful and inspired than the great Carl Sagan, and his 1954 reading list, part of his papers recently acquired by the Library of Congress, speaks to precisely this blend of wide-angle, cross-disciplinary curiosity and focused, in-field expertise—and is balanced with a healthy approach to reading and “non-reading”, with some books read “in whole” and others “in part.” See what Sagan recommends.
Carl Sagan's reading list 1954