Education
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Medieval Staircases Were Not Built Clockwise for Defenders
A myth-busting article tracing the popular castle-tour claim that spiral stairs favored right-handed defenders, and show…
Medieval Writing
An introduction to medieval writing, covering the origins of written culture, paleography, the history of scripts and li…
Medievalists.net
A widely-read hub for medieval history news, academic articles, and podcasts on everything from castles to Viking raids.
Meditype
A meditative typing practice where you type your way through public-domain literature one passage at a time, with no spe…
medRxiv
A preprint server for the health sciences where researchers post medical studies before peer review, openly readable by…
Meet the Red Baron
A comprehensive multilingual site on the life and death of Manfred von Richthofen, the Red Baron, told through timelines…
Mega Millions Simulation
Pick your Mega Millions numbers and let the simulator play draw after draw for years, tallying how much you spend and ho…
Meganum
A relaxing yet challenging math puzzle game that tests your logic and basic arithmetic skills. Plays instantly in the br…
Melanie Spanswick
The site of piano educator, author, and composer Melanie Spanswick, whose blog covers practising the piano, piano music,…
Melbourne 1945
An interactive map that compares present-day satellite imagery of Melbourne, Australia with aerial photographs taken in…
Melting Asphalt
Essays by Kevin Simler on human nature, culture and ideas, including celebrated interactive pieces like Outbreak and Goi…
Memento
Each day it shows someone notable who died at exactly the age you are today, a small daily memento mori with a short loo…
Memocamp
A memory-sports training site offering timed exercises in card memorization, number recall, and image sequences, the sam…
Memorize Earth
A Jeopardy-style geography trainer that quizzes you on countries, capitals, flags, US states, oceans, and mountain range…
Memory Improvement Tips: Brain Games
A free directory of over two hundred brain games organized by the cognitive skill each one targets, alongside plain-lang…
Memory League
An online platform where people compete live in memory sports like memorizing cards and numbers, based on real memory-at…
Memory of Mankind
A project storing a time capsule of human knowledge on ceramic tablets deep in an Austrian salt mine, meant to stay read…
Menneske Sudoku
A free, minimalist Sudoku site with puzzles at many difficulty levels, including small 2x2 and 4x4 grids that make it ea…
Mensa for Kids
A free nonprofit resource of logic puzzles, brain teasers, and lesson activities originally built for gifted-education c…
Mental Labour
A vanity blog exploring the interrelationships of German Idealism, Metamodernism and Dialectical Materialism, a niche co…
Mental Models
A widely shared essay collecting and explaining a personal toolkit of mental models drawn from science, economics, and p…
Mental Models Box
A curated collection of mental models for everyday thinking, each with a short explanation and real-life examples, plus…
Meri Cherry
An arts and crafts blog for kids and their families, with articles on art adventures, design, graphic art, process art a…
Merlin Bird ID
Cornell Lab's free bird identification help: answer a few questions or browse species guides to name the bird you saw, w…
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