Life after death? Pick a door, then wander a crowd of 1,500 people and what each believes about an afterlife
Reviews
Yara Reads Picture-book stories a new reader can sound out alone, one tapped word at a time
Lost & Found A 70-second film on how TCP delivers what the internet drops, then a storm you can make yourself
Museum of Ages: Leonardo da Vinci A free 17-stop walk to Leonardo's last house, rebuilt in code
MIT OCW TV 170 MIT courses as cable channels, always mid-lecture
Black Hole Lab Throw Alice and Bob into Sagittarius A*
Jikji, the Oldest Surviving Book Printed with Movable Type Korean Zen teachings printed in 1377, scanned page by page at the BnF
Encyclopedia Prehistorica: Dinosaurs Six spreads of paper dinosaurs, each hiding smaller pop-ups in fold-out booklets
A Forest Language Hannah Fries's lexicon of 61 words for how trees live
International Standard Paper Sizes Markus Kuhn on why A4 is the shape it is, and the 1786 letter that noticed it first
Print Graph Paper 57 kinds of paper, from Smith charts to genkō yōshi, printed at true scale
MidiSlayer A sight-reading trainer that grades you on the notes you keep dodging, not the ones you already know
Flyover Country Point your phone out the window and the river below gets a name
Using the Railway Network as a Flatbed Scanner A conveyor-belt inspection camera out a train window, and the accelerometer maths that makes the picture readable
Apple's Dimensional Drawings Ninety PDFs of every recent product, dimensioned to the hundredth of a millimetre
CSIRAC Emulator Australia's first computer, running again in a browser tab
The Feather Atlas: Identify Feather Tool A federal forensics lab's feather-matching database, no AI required
NFC Energy-Harvesting Business Card Twenty-one LEDs, no battery, powered by the phone reading it
Mapping India's Clouds A daily pixel map of where it is cloudy
Old Blue Every black robin on Earth is descended from one female who should have died at eight
Odyssey Explorer Seventeen landfalls, every Greek word openable, and a running count of the men who never got home
The Bankes Homer Sixteen columns of Iliad 24, and a second man's handwriting all over them
Pneumatic Tube Mail Twenty-seven miles of pipe under New York, 600 letters to a canister, 35 miles an hour
Every Cube All 43,252,003,274,489,856,000 cube states, laid out on one ruler
Cycloidal Gearbox A fifteen-year-old's 3D-printed 1:9 drive, published with the version that failed and the numbers that prove it
Elevators An interactive case that the fancy elevator kiosk is making you wait longer
Agloe, New York A town invented as a copyright trap, which then opened for business
The Archimedes Palimpsest A prayer book written across the only known copies of two lost Archimedes works
David Rumsey Map Collection 149,000 historical maps online, free, and searchable down to the text engraved on them
Wyrm Math An open-source algebra engine where illegal moves have no square to drop into
The 1911 Odyssey The earliest feature-length Odyssey on film — a restored 1911 Italian silent, free to watch
Snewpapers Browse three centuries of digitised newspapers, 1730s through the 1960s
Finds
- The Best Monopoly Strategy, Tested on 300 Million Games Eight classic strategies played 312,898,560 times against each other
- The Outer Web A search engine for the personal, noncommercial web
- Timeline: A Visual History of Our World Peter Goes's black-ink history of everything, one oversized spread per era
- Visual cdecl Edit a C declaration as English, as code, or as a box-and-arrow diagram
- Life after death? Pick a door, then wander a crowd of 1,500 people and what each believes about an afterlife
- Hyperland Douglas Adams' 1990 BBC film imagining the web, with Tom Baker as your software agent
- Yara Reads Picture-book stories a new reader can sound out alone, one tapped word at a time
- The Legend of Hyrule The Zelda timeline as a scroll that splits into three threads
- The Supreme Art of the Teacher Einstein's line on teaching, traced to a German inscription for a 1931 observatory plaque at Pasadena Junior College, not to his speech.
- Every Dog in New York 96,459 licensed dogs, mapped across 197 neighborhoods
- llmspeed Feel how fast a local LLM runs on a given machine before you buy it
- Lost & Found A 70-second film on how TCP delivers what the internet drops
- Code Like It's 198x Learn programming by building whole games on a C64, Spectrum, NES or Amiga
- Museum of Ages: Leonardo da Vinci A free 17-stop walk to Leonardo's last house, rebuilt in code
- Rigged Draw Say numbers aloud as randomly as you can, and a hidden predictor tries to beat you
- Bay Area Traffic Trends What an average Tuesday at 8 am looks like on the 101
- MIT OCW TV 170 MIT courses as cable channels, always mid-lecture
- The Quantified Self: Learning to Observe Gary Wolf's manual for running experiments on yourself
- Academic Ancestry Who taught the people who taught you?
- Black Hole Lab Throw Alice and Bob into Sagittarius A*
- Sleeping Beauties by David Byrne Why good ideas go dormant, and how they wake up
- Every US Electrical Outlet Explained Practical Engineering on the 35-plus outlet types hiding behind "two-prong"
- Programming Language Wars A pixel-art brawler where JavaScript, Rust, Haskell and C trade special moves
- Read Rare Forty-odd internal memos and out-of-print business books, free to read or borrow
- Build with Python A beginner course where your first programs draw pictures
- French Revolutionary Calendar Today's date in the Republican calendar, with its plant, animal or tool
- Henry Segerman A mathematician who 3D-prints geometry you can hold
- Sounds of a Jurassic Forest A 165-million-year-old insect chorus rebuilt from fossil wings
- Timeline of the Far Future Wikipedia's longest-range article, scrolled from a thousand years out to the end of time
- Lobster is Lobster A word game where you guess the language
- Black Hole Raytracer Fly around a Schwarzschild black hole, rendered live in your browser
- Jikji, the Oldest Surviving Book Printed with Movable Type Korean Zen teachings printed in 1377, scanned page by page at the BnF
- Encyclopedia Prehistorica: Dinosaurs A pop-up book twelve pages long and two and a half inches thick
- Enigma in 3D An Enigma you can type on, then follow the current through the rotors
- Космос сейчас (Space Now) The real Solar System in your browser, with 526,000 asteroids and every tracked satellite
- A Forest Language Hannah Fries's lexicon of 61 words for how trees live
- Annie Dillard's "Living Like Weasels" A long glance with a weasel at the edge of a two-acre pond
- Transformative Experience L.A. Paul's vampire problem: you can't know what it's like until you've changed
- International Standard Paper Sizes Markus Kuhn on why A4 is the shape it is
- Print Graph Paper 57 kinds of paper, from Smith charts to genkō yōshi, printed at true scale
- Catfishing Guess the Wikipedia article from nothing but its list of categories
- FLYBOX An open-source sandbox built around a real, 166,700-neuron fruit-fly connectome
- obtuse The barracuda named for its blunt gill cover
- kidology How Holyfield's trainer lied about the clock
- Museum of Time-Based Art A catalogue of every artwork that uses time as its material
- Posting Puzzle A post-office puzzle built on an unsolvable problem
- timorous Russia's railway chief on why the fast trains stayed away from Finland
- Galileo's Dimensions of Hell In 1588 the Florentine Academy asked a 24-year-old Galileo to measure Dante's Inferno, and he did
- misgiving On exam day in Korea, air-traffic control holds every takeoff for the listening section
- US Food Price Monitor What the farmer got, what the wholesaler paid and what the supermarket advertised, every business day
- Edward Abbey's Confessions of a Barbarian How not to die, and the promise that you'll outlive the bastards
- George Kubler's The Shape of Time Defining the present as the dark between the lighthouse's flashes
- Frederick by Leo Lionni The mouse who gathered light and words while the others gathered grain
- MidiSlayer A sight-reading trainer that grades you on the notes you keep dodging, not the ones you already know
- soporiferous A sermon so sleep-inducing that the preacher had to shriek
- They Can Talk A free curriculum for teaching your dog to talk with buttons
- Flyover Country Point your phone out the window and the river below gets a name
- The Endless Museum Every Wikipedia article is a room; every link is a door
- Alien Size Comparison A 3D scale chart running from microscopic to bigger than a galaxy
- The Bayeux Tapestry Story in Full A 58-minute scroll through the whole embroidered chronicle, timed to its British Museum debut
- decedent One Latin root away from decadent, and both words met in the same will
- Using the Railway Network as a Flatbed Scanner An industrial scanner reads the passing world one pixel-line at a time
- The Genius Logic of the NATO Phonetic Alphabet It isn't phonetic, and NATO didn't invent it
- Genius Design Details: Pips and Nubs Three small bumps that do more work than they look like
- Toaster vs. Freezer: Which Would Win? A 162-second answer to a podcast argument
- Witness: An Organima Film Five minutes of stone, wood, and water animated where they lie
- Apple's Dimensional Drawings Ninety PDFs of every recent product, dimensioned to the hundredth of a millimetre
- Farseer Fly anywhere in the universe, on catalogue data that says where it stops
- The NTS Guide to Jazz in Murakami Novels Two hours and seventeen minutes of the records his characters put on
- Any Human Ever Draw one life at random from the hundred billion people who have ever lived
- Bodily Oddities 143 strange things human bodies can (sometimes) do, sorted by region, with the odds
- Kids Trends A hundred million children's drawings, searchable, charting twenty years of what kids cared about
- Mystery Chart Every day, five real charts arrive with the title redacted, and you work out what you're looking at
- Old Map vs New Map Mercator and Equal Earth side by side, panning together, with countries you can drag between them
- 12 Crank Mechanisms Visualized Twelve mechanisms drawn on one sheet, each proving something about itself before it moves
- Livedin Design Patterns Twenty-six architectural patterns, from a window seat to a hillside town, as 3D models you can turn
- Math Gambling Stake some processor time on finding three cubes that add up to 114
- The Water Clock That Kept the Most Accurate Time for 1,800 Years Ctesibius's float-valve clepsydra, unbeaten until Huygens's pendulum clock in 1656
- CSIRAC Emulator Australia's first computer, running again in a browser tab
- Relativity Park A walkable park where light only moves 5 km/h
- Asm Editor A browser IDE for M68K, MIPS, RISC-V, x86, and Z80 assembly
- Ma The Japanese concept of interval as an antidote to certainty
- The Map of Steam 80,000 Steam games arranged by design mechanics rather than genre
- The Feather Atlas: Identify Feather Tool A federal forensics lab's feather-matching database, no AI required
- Erich Fromm's Rules of Listening Six guidelines from a psychoanalyst who compared listening to reading poetry
- How Leonardo da Vinci's Procrastination Contributed to His Creativity Sixteen years to finish the Mona Lisa, one stroke at a time
- wikifuse Merges a Wikipedia article's language editions into one sourced page
- Why Inventing Color TV Was So Difficult How RCA hid a color signal inside black-and-white broadcasts
- The Invention of Zero Robert Kaplan on zero's journey from Sumerian placeholder to Indian number
- Newton's Orchard A browser-based solar-system builder with real N-body physics
- cowhearted Coward is all tail and no cow
- Reactor Atlas Drag the year and watch the fleet stop growing, twice
- Wisława Szymborska's Nobel Speech Inspiration is born from a continuous "I don't know"
- Industry Standard Tools The one product everybody in a trade already owns
- Milton Glaser's Ten Rules for Work and Life Including an almost infallible test for whether a person is good for you
- moth-wing Fragile or fleeting — and a noun for the thing itself
- Kindle Comic Converter (KCC) Manga and comics recompressed for true fullscreen on e-ink
- The EuChemS Periodic Table of Endangered Elements All 90 natural elements recolored by how soon we might run out
- NFC Energy-Harvesting Business Card Twenty-one LEDs, no battery, powered by the phone reading it
- Underfoot Recording what the AI in your phone quietly became
- A Life of One's Own Seven years of keeping evidence on your own happiness
- Cosmic Collisions Watch a moon assemble itself out of the wreckage
- Exactly A history of engineering told in orders of magnitude
- Mapping India's Clouds A daily pixel map of where it is cloudy
- 3D-Printed NPT Thread Checker Five minutes of printing instead of calipers and a lookup table
- Sam Learns Things — World Map A geography drill that stops asking about the boring islands
- s-1.space What they said before going public, checked against what happened
- The Tree and the River One tree, one river, not a single word
- The Odyssey, translated by Emily Wilson Same line count as the Greek, and it moves
- POSIWID The purpose of a system is what it does
- Too-Ticky on uncertainty "All things are so very uncertain, and that's exactly what makes me feel reassured"
- If All the Water on Earth Disappeared The ships are the part you had not thought about
- The Book of Human Emotions Words for feelings English never got around to naming
- Pigeons Navigate With Their Livers Superparamagnetic macrophages, and a compass nobody was looking for
- The Book of Delights One delight a day, birthday to birthday
- Conway's Doomsday Rule Two secrets and you can name the weekday of any date
- Infrastructure A field guide to everything that isn't nature
- Old Blue Every black robin alive is descended from one bird
- Solivagant A word for wandering alone, in writing since 1621
- Why Are Rivers So Mathematical? Every stream on Earth is holding to the same exponent
- How Bluesky Draws Its Logo on Screenshots The trick is a humble UITextField
- Folding Globes Print a planet, cut it out, fold it into a sphere
- Odds and Ends A picture book about the last time you did something
- The Wavy Window Paradox Why office glass ripples from outside and not from inside
- Odyssey Explorer Tap any Greek word and the ten-year voyage explains itself
- Baba Yaga's Assistant Answer the want ad, brave the wood, make dinner for the witch
- Nature's Oldest Mandolin A cicada sings with its whole body, and the instrument has not changed in a thousand centuries
- draw.city Draw a shape on the map; find out how many people you just enclosed
- The Lost Art of Carrying Loads Six carry systems that solved it before Cordura existed
- Make: Fun! Forty projects from a man who designed toys at Mattel for a living
- On Looking Eleven walks around one city block, each with a different expert
- Ozu in Color Every Frame a Painting returns to explain how Ozu learned colour
- Rijksstudio 840,000 works from the Rijksmuseum, free to download and free to cut up
- Sandcastles Made Simple A four-foot sand tower with no bucket, no form and no plastic castle mould
- Identify files in APFS using inode numbers Disk Utility tells you a file is broken without telling you which file
- circumambient A word that goes around, and then goes around again
- Encyclopedia of Concise Concepts by Women Philosophers Two thousand years of ideas, one concept at a time, in 300 words
- How Does an Enigma Machine Work? A 3D teardown that follows one keypress through the whole rotor path
- Everyday Genius A memory champion's techniques, reduced to things you can do this afternoon
- If You Rode a Ship's Anchor to the Mariana Trench The drop to Challenger Deep, in real time, on the Titanic's anchor
- How Ancient Greek Warships Worked A 3D animation that finally makes three tiers of oars make sense
- The Pressed Ginkgo Leaf in Alice in Wonderland Deep time, opened from one leaf kept between two pages
- I Didn't Set A Cookie No cookies, no permissions — and it still knows your device and location
- Other Eclipses What a solar eclipse looks like from other planets and moons
- Pismire The word for an ant, from urine and mire
- The Bankes Homer A 2nd-century Iliad papyrus, now readable at full resolution
- Brushstrokes: Divisionism Seurat's argument that the eye should mix the paint, not the palette
- Pneumatic Tube Mail Sixty years of American post travelling underground at 35 mph
- Supersonic Trebuchet A medieval siege engine producing a very small sonic boom
- Vonnegut's Eight Tenets of Storytelling Rule three: every character should want something, even if it is only a glass of water
- The Met's Copyist Program Set up an easel in the galleries and paint the painting
- Rocky's Musical Language Building an alien tongue out of notes, then asking linguists if it holds
- DDIA, as a Live Comic Distributed systems drawn as panels, then pushed until they break
- Why Did We Wait So Long for the Bicycle? Clockmakers in the 1300s, watches by the 1500s, no bicycle until the 1800s
- Every Cube A scroll bar with 43 quintillion stops on it
- insidedb Watch a B-tree split while you read about B-trees
- Rapture To seize, and to be seized
- Assart One word for the field and for the clearing of it
- StratoPi A Raspberry Pi, a weather balloon, and 100,000 feet
- When the bird and the book disagree A birdwatcher's proverb that Audubon never said
- HideUrBits Watch a single letter get hidden inside eight pixels
- Jean Piaget on the Adult in Every Child From The Moral Judgment of the Child (1932)
- Star Patrol A space game you play by fingerspelling
- Thank You, Everything A picture-book litany of thanks, built on tsukumogami
- Eclipse Times 2026 Which floor of your building can actually see the August 12 eclipse
- Why Some People Mow a Lawn Better Than Others 49 squares, 14,589 different ways, and people found all 12 perfect ones
- The Phone in Your Hand Fourteen layers deep, read on the object it describes
- bumbaze To bewilder or stupefy
- NearbyWiki Everything Wikipedia knows about where you're standing
- newold.computer A parts counter for machines that stopped shipping decades ago
- Crotchet The etymological twin of crochet, and no relation to the word you're hearing
- Kakehashi Wine, pointed the other way
- Project ESPAÑOL Ten thousand Spanish poems, sorted by the verb tenses you've learned
- BoredReading Long-form articles ranked by readers, with a keyboard shortcut printed on every control
- Cycloidal Gearbox A fifteen-year-old's 1:9 gearbox, published with the version that didn't work
- Elevators Why the elevator isn't coming, run at 25× until you can see the answer
- The Mind's I Twenty-seven essays and stories on the self, each one argued with by its editors
- Agloe, New York A town invented as a copyright trap, which then opened for business
- The Archimedes Palimpsest A prayer book written across the only known copies of two lost Archimedes works
- ChipBuilder Start at the AND gate, finish running your own machine code
- Disannul A prefix that agrees with itself instead of reversing
- Magnetic Sand Iron filings in a spice shaker, so the field shows up
- Hot Hand Project Pick the real NBA streak out of the coin flips
- Patterns in Nature Why a giraffe's spots look like cracked mud
- tale.fyi A whole public-domain book behind one link
- Etymologue Word origins you can walk forwards as well as back
- Misdoubt A prefix that reinforces instead of reversing
- Antipelargy A word for the care children return to their parents
- Semiconductor Simulator Animations Watch electrons and holes move through a transistor
- Publius All 85 Federalist Papers, presented one by one as they first ran in 1787-88
- Inconspicuous Consumption A newsletter with big enthusiasm for the design details everyone else ignores
- Mycorrhizal Infrastructure Map An interactive map predicting how dense Earth's underground fungal networks are, anywhere on land
- Biblioteca Umberto Eco Umberto Eco's 32,000-book personal library, opened exactly as he left it
- Bellwether The sheep that named the trend
- The Computers of Jurassic Park Every screen in the movie, identified
- Expiscate To fish out — the verb for finding something by patient investigation
- Ettercap The Old English word for spider, still the best insult for a gossip
- Auspicate To begin an undertaking is, etymologically, to birdwatch first
- Copybook Generator Printable Chinese and English handwriting worksheets from any text
- Mainichi Learn Japanese by touring all 47 prefectures
- Cormac McCarthy on Shaping the World to Our Convenience From Cities of the Plain, closing the Border Trilogy
- Michel Foucault's Lectures Decades of Foucault's own recorded lectures, gathered in one place
- Ilya's Papers Quest Ilya Sutskever's famous AI reading list, turned into an RPG
- Uncovered Judge a book by its first page, blind
- IKEA Complexity Index Every IKEA product ranked by how hard it is to build
- Gamy Six unrelated senses, one word — and no relation to '-gamy'
- Noodle One spelling, three unrelated word histories
- Heard An EPUB reader with on-device narration and a free library of public-domain classics
- Mathellaneous A free, fully hands-on math museum on a Kansas campus
- The Nature of the Physical World Arthur Eddington's 1928 lectures on why the solid table under your hand is mostly empty space
- Verba Prima Guess the novel from nothing but its opening line
- Pitch Trail Ear training for kids disguised as a color game
- The Syntopicon Mortimer Adler's hand-built index to the Great Ideas
- Tomesphere Atlas Millions of arXiv papers rendered as one pannable, zoomable map
- Wyrm Math An algebra app where illegal moves can't physically be dragged into place
- Inventing ELIZA The first chatbot's rediscovered 1966 source code, back in print
- Worse on Purpose A public ledger of brands that quietly sold out
- SubSmith Turn any video moment into an Anki flashcard
- Alfred Korzybski on believing vs. doubting Both save us from actually thinking
- Origin Myth Map Creation myths of the world's civilizations, plotted on one map
- Uncovered Tinder, but for the first pages of novels
- How the Heck Do Solar Panels Work? Interactive explainer from photons through the full energy chain
- Julius Sumner Miller: Why Is It So? Complete 1962–73 physics demo show archived by ABC Australia
- Learn AI Layer by Layer Free interactive book building LLM understanding from scratch
- Leonardotheka 3,500 pages of Leonardo's manuscripts reunited digitally
- The Map of Physics Animated overview of every physics field and the gaps between them
- Mechanical Pencil Meticulous 3D animations of everyday object internals
- Storied Colors Browseable catalog of 252 pigments spanning 40,000 years
- Works in Progress Stripe's long-form magazine on technology, science, and progress
- Tolstoy's Guide to Daily Wisdom Tolstoy's last project — a year of daily readings from world philosophy
- Camus: "My revolt, my freedom, and my passion" Camus's three consequences of accepting absurdity — not despair but revolt, freedom, and passion. Surfaced in a Maria Popova essay on a 1945 interview.
- EzFurigana Add context-aware furigana to any Japanese text
- Fuel Efficiency of Launching Enemies into the Sun A physics analysis of disposing of objects via the Sun versus interstellar space
- Guerilla Art Guide Keri Smith's how-to for putting art into the world without asking permission
- Juan Ramón Jiménez: "Platero stops eating and looks at me" The Spanish Nobel laureate's prose poem about a quiet exchange of attention with his donkey — surfaced by Maria Popova on tenderness as a vehicle for the eternal.
- Judy Garland: "'Twas not my lips you kissed, but my soul" Quote Investigator traces a widely-attributed Sarah Bernhardt / Mary Magdalene line to a 1939 Judy Garland poem, My Love Is Lost.
- Merriam-Webster's Backward Index 315,000 dictionary entries typed in reverse for suffix lookup
- M.I.T.'s 1973 Civilization Collapse Model Jay Forrester's 'Limits to Growth' simulation said civilization ends around 2040
- Peopleware DeMarco and Lister's classic on why software teams really succeed or fail
- The Math Behind Van Gogh's Starry Night TED-Ed video explaining how the painting captures real fluid-dynamics turbulence
- Kundera: "We can never know what to want" Milan Kundera on the structural irreversibility of life decisions — surfaced in a Maria Popova essay on ambivalence.
- Making Comics by Lynda Barry Drawing instruction aimed at people who think they can't draw
- Manga Kamishibai Eric Nash's book on the Japanese paper theater that preceded anime
- Spirochaete Trail A long-running essay blog on overlooked media and material culture
- Flipbook Type a query, get a machine-generated illustrated encyclopedia entry
- Julian of Norwich "Mercy and forgiveness leadeth us to grace" Wikiquote's Quote of the Day from Julian of Norwich, the 14th-century English anchoress whose Revelations of Divine Love is the earliest surviving book in English by a woman.
- What Would J.R.R. Tolkien Think of Palantir? A video essay on a defense contractor named after Tolkien's corrupt magical objects
- Gary Snyder — "The cage they were tricked into entering" From Earth House Hold (1969), via The Marginalian
- Marianne Moore — "Imaginary gardens with real toads" From Poetry, via The Marginalian
- Zen Mind, Beginner's Mind Shunryū Suzuki's 1970 Zen primer, still the recommended one
- Echoes of Genius: Enduring Wisdom from Great Minds A self-published quote book arranged as a perpetual calendar
- Martha Nussbaum on Human Fragility On openness as a precondition for being good
- Pythagoras on the Philosopher at the Olympics Where the word 'philosopher' actually came from
- Skymap An interactive 3D galaxy catalog in your browser, rendered with WebGPU
- Simone de Beauvoir on Marriage and the Freedom to Change Beauvoir on why a marriage isn't a single decision but a daily one — and why that's its strength, not its problem.
- "If we knew what we were doing, it would not be called research." Almost universally attributed to Einstein, almost certainly not his — and a more honest description of how research actually proceeds.
- Anna's Archive Offshore shadow library with 95 million scholarly articles
- Hannah Arendt — Men in Dark Times On the strange humanity available to outsiders
- Machiavelli — "Force or fraud" Wikiquote's quote of the day, sharpened from *The Discourses*
- Magnified Sand One-person archive of sand from around the world, photographed under a microscope
- Mary Oliver — The Fourth Sign of the Zodiac A poem on belonging to your own life, written after cancer