https://xkcd.com/xkcd.com: A webcomic of romance and math humor.enhttps://xkcd.com/2088/<img src="https://imgs.xkcd.com/comics/schwarzschilds_cat.png" title="Cats can be smaller than the critical limit, but they're unobservable. If one shrinks enough that it crosses the limit, it just appears to get cuter and cuter as it slowly fades from view." alt="Cats can be smaller than the critical limit, but they're unobservable. If one shrinks enough that it crosses the limit, it just appears to get cuter and cuter as it slowly fades from view." />Fri, 21 Dec 2018 05:00:00 -0000https://xkcd.com/2088/https://xkcd.com/2087/<img src="https://imgs.xkcd.com/comics/rocket_launch.png" title="NASA tries to coordinate launch timing with the Care Bears' cloud castle, but unfortunately sometimes collisions with stray Care Bears are unavoidable, so they just try to make the fairings sturdy and hope for a glancing impact." alt="NASA tries to coordinate launch timing with the Care Bears' cloud castle, but unfortunately sometimes collisions with stray Care Bears are unavoidable, so they just try to make the fairings sturdy and hope for a glancing impact." />Wed, 19 Dec 2018 05:00:00 -0000https://xkcd.com/2087/https://xkcd.com/2086/<img src="https://imgs.xkcd.com/comics/history_department.png" title="When we take into account the recent discovery of previously-unstudied history in the 1750s, this year may have been an outright loss." alt="When we take into account the recent discovery of previously-unstudied history in the 1750s, this year may have been an outright loss." />Mon, 17 Dec 2018 05:00:00 -0000https://xkcd.com/2086/https://xkcd.com/2085/<img src="https://imgs.xkcd.com/comics/arxiv.png" title="Both arXiv and archive.org are invaluable projects which, if they didn't exist, we would dismiss as obviously ridiculous and unworkable." alt="Both arXiv and archive.org are invaluable projects which, if they didn't exist, we would dismiss as obviously ridiculous and unworkable." />Fri, 14 Dec 2018 05:00:00 -0000https://xkcd.com/2085/