Education
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Markdown Guide
A free and open-source reference guide explaining how to use Markdown, with basic syntax, extended features, and handy c…
Markkula Center for Applied Ethics
A university ethics center publishing accessible case studies and articles on business, technology, bioethics, and every…
Mars - NASA Science
NASA's hub for everything Mars: rover and orbiter missions, fresh images from the surface, planet facts, 3D models and i…
Mars Calendar
A live Martian clock and calendar showing the current Mars date and Mars Time (MTC) alongside solar longitude, with note…
Mary Shelley, Horror's Greatest Mother
An essay marking 200 years since the birth of Frankenstein, tracing how Mary Shelley's novel shaped Gothic fiction and m…
MasterRussian
A free comprehensive site teaching Russian grammar, vocabulary, and the Cyrillic alphabet through structured lessons and…
Mastery and Repetition in Groundhog Day
An episode of the Subtext podcast in which a psychoanalyst and a philosopher dissect Groundhog Day, asking what Bill Mur…
Math Breakdown: Anime Homing Missiles
A visual tutorial on recreating anime-style swarming missile trails using cubic Bezier curves, Perlin noise and minimal…
Math Challenge
A free archive of hundreds of recreational number theory and combinatorics puzzles, organized by topic and difficulty fo…
Math Crossword
A number crossword where you drag and drop numbers into their correct places to move up through endless levels, made for…
Math for Love
An educator-run site of free games and puzzles designed to make mathematical thinking genuinely enjoyable, including ori…
Math for Motion
An animated cheat sheet of equations for creating organic motion in code, with line graphs showing how each function sha…
Math from Three to Seven
A lively review of Zvonkin's classic about a Moscow math circle for preschoolers, with delightful examples of how very y…
Math is Fun
Clear, illustrated explanations of mathematics from basic arithmetic to calculus, with puzzles, games, and an illustrate…
Math Munch
A weekly roundup blog serving up bite-sized recreational math discoveries, puzzles, and mathematical art for curious stu…
Math Symbols List
A reference table of basic mathematical symbols and signs with the meaning of each, covering equality, inequality, brack…
Math With Bad Drawings
Ben Orlin's math blog, where hand-drawn cartoons and offbeat metaphors explain and poke fun at mathematics and the way i…
Math3ma
A mathematics blog by Tai-Danae Bradley with approachable essays on category theory, linear algebra, probability and the…
Mathcha
A browser-based math editor for typing equations visually, drawing diagrams and exporting to LaTeX, so you can write up…
Mathematical Instruments
A private collector's museum of drawing instruments, slide rules, sectors and mechanical calculators, with photos, histo…
Mathematically Correct Breakfast
George Hart shows, step by step with photos, how to slice a bagel so the two halves come out as interlocking rings, plus…
Mathematics in the Library of Babel
An essay by mathematician Daniel Litt that uses Borges's Library of Babel to reflect on mathematics, what could be found…
Mathematics Keyboard Online
A virtual keyboard for typing mathematics and physics symbols and equations directly in the browser, with nothing to ins…
Mathematics of Animation
A slide deck that explains the math behind animation, showing how equations drive the motion of elements on screen in de…
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