CCAB

Complex Adaptive Systems

Boids, Schelling, Sugarscape, Physarum, sandpile SOC, Couzin schools, Dictyostelium — local rules, emergent order

Page's CAS Models (ABM + SD)

Scott E. Page's Model Thinking favorites — 71 ABM + 71 SD views of the same families: Schelling, sand piles, beehives, Lotka-Volterra, Solow, Lorenz; plus a deluxe pass adding Gray-Scott, Lenia, Physarum, Vicsek, Ising, Watts-Strogatz, Chua, Daisyworld, Minsky, archetypes

The Affect Gap

Agent-based grievance propagation with an explicit gap variable: distortion fields, cascades, keystone burnout, the phenomenology of the riot

Cellular Automata Lab

Classic and exotic cellular automata

Classic Fractals

Self-similar geometry and fractal exploration

Pendulum Dynamics

Swinging systems and chaotic motion

Oscillators & Chaos

Nonlinear dynamics and strange attractors

Mechanics & Collisions

Rigid body physics and elastic interactions

Thermal & Diffusion

Heat transfer and molecular diffusion

L-Systems

Ising Model

BZ Reaction

Fourier Epicycles

Genetic Algorithm

Procedural Terrain

Spatial Partitioning

Pathfinding

Random Walk

Ray Marching

Procedural Generation

Aircraft Maintenance Engine

Project Njord — Wind & Flight Time

Automata Theory

Finite state machines and formal language recognizers

D3.js

Data-driven documents: population spirals, force graphs, Sankey, chord, treemap, globe projections, and more

SVG Animations

Interactive SVG: anatomy explorer, periodic table, circuit schematics, gear trains, and more

Hybrid Canvas + SVG

Canvas simulations with intelligent SVG overlays: physics, fluids, boids, double pendulum, and more

Dynamic Infographics

Data Structures

American Religious Trends

80 years of demographic transformation (1940–2024)

Timezone Comparison Tools

Schedule meetings: Miami, London, Malta, Moscow, Dubai with DST

StoryLeaf Branch Visualizer

3D interactive story tree with branching narratives and real-time growth

Three.js

Three.js VFX

WebGL Shaders

Complex Showcases

Interactive Visualizations

P5.js Generative Art

Creative coding with P5.js: generative patterns, particle systems, and interactive sketches

P5.js VFX

100 impressive p5.js visual effects — flow fields, fractals, strange attractors, fluid sims, reaction-diffusion, 3D WEBGL, and more

WebGPU

Next-gen GPU compute: N-body, LBM fluid, path tracing, reaction-diffusion, and more

Web Audio API

Music Sequencers

Cymatics

Sound made visible: Chladni figures, standing waves, acoustic levitation, and more

Church Organ Simulator

The King of Instruments: 3-manual pipe organ with additive synthesis and cathedral reverb

璇璣圖 Xuanji Tu

Su Hui's 4th-century palindromic poem becomes music

WebAssembly

Visualization Algorithms

Interactive Games

Puzzle Games

Simon Tatham's classic logic puzzles: Sudoku, Minesweeper, Untangle, Tents, and 36 more

Chess960 Simulator

Fischer Random Chess - explore all 960 unique starting positions

ML Visualizations

Neural networks, gradient descent, clustering, decision boundaries, and training dynamics

Modern Cryptography

RSA, AES, Diffie-Hellman, elliptic curves, hash functions, and zero-knowledge proofs

Advanced CS & AI

Search algorithms, constraint satisfaction, knowledge representation, and AI reasoning

Distributed Systems

Consensus protocols, replication, and distributed coordination

Educational Demos

Deep-dive learning with theory, algorithms, and guided explorations

Visual Essays

Kenning Creator

Ancient Norse compound metaphors - browse, mix, and create your own

Challenge Mode

Test your understanding with gamified challenges - earn XP and master concepts

Phase Diagrams

Temperature-pressure phase transitions for water

Simulated Annealing

TSP optimization through cooling-inspired search

Stress-Strain Curves

Material testing: elastic, plastic, and fracture behavior

Phonon Vibrations

Crystal lattice wave propagation and phonon modes

Dislocation Motion

Edge dislocation glide through crystal lattice

Alloy Phase Maps

Binary alloy phase diagram with eutectic points

Reaction Kinetics

A + B → C molecular collision and reaction rates

Molecular Orbitals

Electron probability density cloud visualizations

Enzyme Kinetics

Michaelis-Menten enzyme-substrate binding dynamics

pH Buffer Systems

Acid-base buffering and equilibrium visualization

Polymer Chains

Random walk polymer chains and reptation dynamics

Surface Catalysis

Langmuir-Hinshelwood mechanism on catalyst surfaces

Crystal Field Theory

d-orbital energy splitting in coordination compounds

Le Chatelier Equilibrium

Dynamic equilibrium shifts under perturbation

Galvanic Cell

Electrochemical cell with ion migration and electron flow

Chemistry & Materials

Chemical bonding, material properties, crystallography, and molecular interactions

Climate & Weather

Atmospheric dynamics, ocean circulation, and climate phenomena

Ecology & Population

Ecosystems, species interactions, and population models

Fluid Dynamics

Flow patterns, instabilities, and continuum mechanics

Energy Systems

Renewable energy, power systems, and environmental cycles

Earth & Space Science

Plate tectonics, seismology, atmospheric layers, and planetary science

Solar Eclipse Golden Age 2026–2028

Saros cycles, eclipse visibility paths, and shadow animation for 6 solar eclipses

5,500-Year Saros Eclipse Simulator

11,000+ procedurally generated eclipses from 3000 BCE to 2500 CE with city timelapse & historic names

Epidemiology Models

Disease spread, vaccination, and public health interventions

Transport & Urban Systems

City growth, traffic flow, and infrastructure networks

Controls & Robotics

PID controllers, kinematics, path planning, and autonomous systems

Financial Models

Markets, pricing, risk management, and economic dynamics

College Admissions

Agent-based model: 18 elite high schools, 20 top colleges, ED/EA/RD cycles, hooks, yield, and enrollment

Matching Market Mechanics

Supply & demand side logic: student archetypes, utility models, logit scoring, yield protection, and market clearing cascades

Stellar Evolution

HR diagrams, nucleosynthesis, supernovae, neutron stars, black holes

Cosmology & Universe

Big Bang, CMB, dark energy, cosmic structure, fate of the universe

Digital Signal Processing

Fourier transforms, FFT, filters, wavelets, spectrograms

Communications Systems

AM/FM, PSK, QAM, OFDM, error correction, MIMO

Quantum Physics & Relativity

Wave-particle duality, entanglement, Lorentz transformations, and spacetime curvature

Sunrise Azimuth

The sun never rises in the east — compass, calendar, latitude comparison, and the clock analogy

Bioluminescence

Firefly synchronization, deep-sea anglerfish, GFP fluorescence, glowworm caves

Coral Reef Ecosystems

Bleaching, acidification, trophic cascades, spawning, reef resilience

Mycelium Networks

Wood wide web, Physarum solver, spore dispersal, forest floor ecosystems

Bird Migration

V-formation aerodynamics, magnetic compass, star navigation, global flyways

Insect Flight

Wing kinematics, vortex dynamics, hovering, and biomechanical efficiency

Biomechanics

Muscle mechanics, gait analysis, joint kinematics, and locomotion physics

Fermentation Science

Yeast dynamics, sourdough, kombucha SCOBY, beer brewing, cheese aging

Food Science

Maillard reactions, emulsions, crystallization, and cooking chemistry

Biology & Medicine

Cell biology, genetics, pharmacokinetics, and biomedical systems

Volcanic Systems

Magma chambers, eruption dynamics, pyroclastic flows, lava viscosity

Glacier Dynamics

Ice flow, calving, moraines, isostatic adjustment, Milankovitch cycles

Tidal Mechanics

Lunar tides, tidal bores, resonance, coastal geomorphology

Bridge Engineering

Truss analysis, suspension bridges, arch thrust lines, Tacoma Narrows flutter

Mechanical Linkages

Four-bar, Peaucellier, Chebyshev, Watt, and pantograph mechanisms

Medieval Siege Machines

Trebuchets, catapults, ballistas, battering rams, and siege towers

Railway Operations

Block signals, interlocking, marshalling yards, train dispatching

Paper Airplane Physics

Aerodynamics, glide ratios, center of gravity, and flight optimization

Architectural Geometry

Geodesic domes, catenary arches, Voronoi facades, parametric design

Engineering & Robotics

Robotic kinematics, sensor fusion, control loops, and autonomous systems

Collatz Conjecture

Hailstone sequences, stopping times, trees, spirals, sonification, and the 3n+1 mystery

Prime Partition Detection

Ono's discovery: primes detected via MacMahon partition functions & Diophantine equations

Origami Mathematics

Crease patterns, flat-foldability, Miura-ori, and rigid origami

Maze Generation

DFS, Kruskal, Prim, recursive division, and maze-solving algorithms

Sandpile Dynamics

Self-organized criticality, Abelian sandpiles, avalanche cascades

Moiré Patterns

Interference fringes, rotational moiré, grid superposition, and art

Fourier Art

Epicycles, square wave synthesis, spectrograms, and frequency-domain art

Game AI Strategies

Minimax, alpha-beta pruning, MCTS, A* pathfinding, AI tournament

Math & Geometry

Euclidean constructions, projective geometry, topology, and geometric proofs

Graph Algorithms

BFS, DFS, shortest paths, and graph traversal visualizations

Optimal Matching & Market Design

Gale-Shapley algorithm, school choice mechanisms, NRMP medical matching, and Nobel Prize-winning market design theory

Acoustic Phenomena

Doppler effect, resonance, room acoustics, sonic booms, whispering galleries

Wind Instrument Physics

Standing waves, reed vibration, bore shapes, organ pipes, brass valves

Musical Tuning Systems

Pythagorean, just intonation, well temperament, gamelan, quarter-tone maqam

Optical Fibers

Total internal reflection, WDM, fiber Bragg gratings, photonic crystals

Color Science

CIE chromaticity, color blindness, metamerism, gamut mapping

Typography & Letterforms

Bézier curves, font rasterization, kerning, variable fonts, calligraphy

Textile Mathematics

Weaving drafts, braid groups, tartan design, Jacquard loom, shibori

Dance Choreography

Labanotation, spatial formations, partner dynamics, rhythm visualization

Pottery & Ceramics

Potter's wheel, kiln firing, glaze chemistry, raku thermal shock

Cartography & Projections

Mercator, Robinson, azimuthal, Tissot indicatrices, map distortion

Crazy Christmas

Holiday-themed animations: snowfall, ornaments, light shows, and festive effects

Ancient Navigation

Celestial navigation, Polynesian wayfinding, astrolabe, dead reckoning

Ancient Writing Systems

Cuneiform, hieroglyphics, Linear B, Mayan numbers, Rosetta Stone

Historical Timekeeping

Sundials, water clocks, pendulums, atomic clocks, calendar systems

Constellation Myths

Interactive star maps, asterisms, precession of ages, seasonal sky

Electoral Systems

FPTP, proportional, ranked choice, gerrymandering, Condorcet methods

Forensic Science

Fingerprint analysis, blood spatter, ballistics, DNA profiling

Chess Endgames

King and pawn, rook endings, Lucena position, tablebase explorer

Theocratic Revolutions

Taiping Rebellion, Mahdist State, Sokoto Caliphate, Taliban, Savonarola, Iran

Communist Revolutions

Russian, Chinese, Vietnamese, Cuban, Khmer Rouge, Ethiopian Derg

Independence Revolutions

American, Haitian, Bolivarian, Greek, Indian, Algerian struggles

Fascist Movements

Italian, German, Spanish, Portuguese, Romanian, Japanese strongman regimes

Cold War Proxy Wars

Korea, Vietnam, Afghanistan, Nicaragua, Angola, Greece

Modern Genocides

Armenian, Holodomor, Holocaust, Cambodian, Rwandan, Bosnian

Decisive Battles

Marathon, Tours, Hastings, Lepanto, Waterloo, Stalingrad

Fallen Empires

Roman, Byzantine, Ottoman, Mughal, Spanish, British collapses

Steppe Empires

Xiongnu, Hunnic, Turkic, Mongol, Timurid, Manchu nomadic conquerors

Maritime Empires

Venice, Portugal, Spain, Dutch VOC, Royal Navy, Imperial Japan

Christian Schisms

East-West, Western Schism, Reformation, Anglican, Methodism, Mormonism

Buddhist Traditions

Theravada, Mahayana, Vajrayana, Zen, Pure Land, Nichiren

Great Pandemics

Antonine, Justinian, Black Death, Spanish Flu, HIV/AIDS, COVID-19

Cholera Pandemics

Seven worldwide cholera waves from 1817 to today: Snow, Koch, El Tor

Historic Famines

Irish Potato, Bengal 1943, Holodomor, Great Leap, Ethiopia, North Korea

Volcanic Catastrophes

Vesuvius, Tambora, Krakatoa, Pelée, Mount St. Helens, Pinatubo

Great Earthquakes

Lisbon 1755, San Francisco 1906, Tangshan, Sumatra 2004, Tohoku

Hurricane Disasters

Galveston, Bhola, Mitch, Katrina, Haiyan, Maria

Scientific Revolutions

Copernican, Newtonian, Darwinian, Einsteinian, Quantum, Computational

Mathematical Revolutions

Calculus, non-Euclidean, set theory, Gödel, Turing, category theory

Computing Generations

Mainframe, mini, PC, Internet, mobile/cloud, AI foundation models

Space Age Eras

Sputnik, Apollo, Skylab/Salyut, Shuttle, ISS/Mars, commercial

Aviation Milestones

Wright Brothers, Lindbergh, Jet Age, Concorde, Stealth, Drones

Great Financial Crashes

1929, 1987, Asian 1997, dot-com, 2008 GFC, COVID 2020

Historic Hyperinflations

Weimar, Hungary, Yugoslavia, Argentina, Zimbabwe, Venezuela

Art Movements

Renaissance, Baroque, Impressionism, Cubism, Surrealism, Pop Art

Literary Movements

Romanticism, Realism, Modernism, Beat, Magical Realism, Postmodern

Color Revolutions

Bulldozer, Rose, Orange, Tulip, Cedar, Jasmine — peaceful uprisings

Anti-Colonial Wars

Indonesia, Indochina, Mau Mau, Algeria, Angola, Mozambique

Great Civil Wars

American, Russian, Spanish, Chinese, Yugoslav, Syrian

Arab Spring Uprisings

Tunisia, Egypt, Libya, Yemen, Syria, Bahrain

Medical Breakthroughs

Vaccination, anesthesia, antiseptics, germ theory, penicillin, mRNA

Genetic Discoveries

Mendel, Morgan, double helix, genetic code, genome project, CRISPR

Great Shipwrecks

Titanic, Lusitania, Bismarck, Wilhelm Gustloff, USS Indianapolis, Doña Paz

Nuclear Incidents

Trinity, Castle Bravo, Kyshtym, Three Mile Island, Chernobyl, Fukushima

Pre-Columbian Civilizations

Olmec, Maya, Teotihuacan, Cahokia, Aztec, Inca

Lost Civilizations

Indus Valley, Minoan, Hittite, Mycenaean, Sumerian, Nabataean

Great African Kingdoms

Aksum, Mali, Songhai, Great Zimbabwe, Benin, Ashanti

Southeast Asian Empires

Funan, Srivijaya, Khmer/Angkor, Pagan, Majapahit, Ayutthaya

Medieval Heresies

Bogomils, Cathars, Waldensians, Lollards, Hussites, Spiritual Franciscans

Doomsday Cults

Manson, Jonestown, Waco, Solar Temple, Aum Shinrikyo, Heaven's Gate

The Crusades

First, Second, Third, Fourth, Albigensian, Children's

Catholic Orders

Benedictines, Cistercians, Franciscans, Dominicans, Carmelites, Jesuits

Industrial Disasters

Halifax, Texas City, Bhopal, Chernobyl, Exxon Valdez, Deepwater Horizon

Great Fires

Rome 64 CE, London 1666, Chicago 1871, Tokyo 1923, Peshtigo, Camp Fire

Great Sieges

Tenochtitlan, Constantinople, Vienna, Leningrad, Stalingrad, Sarajevo

World War I Fronts

Western, Eastern, Italian, Middle East, African, Naval/U-boat

Philosophical Movements

Stoicism, Scholasticism, Enlightenment, German Idealism, Existentialism, Postmodernism

Schools of Economic Thought

Mercantilism, Classical Smith, Marxist, Keynesian, Austrian, Monetarist

Schools of Psychology

Psychoanalysis, Behaviorism, Gestalt, Humanistic, Cognitive, Evolutionary

French Philosophers

Descartes, Voltaire, Rousseau, Sartre, Foucault, Derrida

Transportation Revolutions

Steam locomotive, steamship, automobile, aviation, containerization, EV

Internet Platforms

ARPANET, Web, Google, Facebook, iPhone, ChatGPT

Internet Protocols

TCP/IP, DNS, HTTP, SSL/TLS, BGP, HTTP/3 + QUIC

Speculative Bubbles

Tulip, South Sea, Mississippi, Japanese Asset, Dot-com, Crypto

Labor Movements

Luddites, Haymarket, Wobblies, UAW Flint, Solidarity, Fight for $15

Abolition Movements

British Empire, Russian serfdom, US, Brazil, Sokoto, Saudi/Mauritania

Oil Shocks

1973 OPEC, 1979 Iran, 1990 Gulf, 2008 spike, 2014 crash, 2020 negative

Music Revolutions

Romantic, Jazz Age, Rock'n'Roll, Hip-Hop, Punk, Electronic/EDM

Renaissance Cities

Florence, Venice, Rome, Antwerp, Amsterdam, Paris

Opera Composers

Monteverdi, Mozart, Verdi, Wagner, Puccini, Britten

Olympic Eras

Ancient Olympia, Athens 1896, Berlin 1936, Munich 1972, Sydney 2000, Tokyo 2020

FIFA World Cups

Uruguay 1930, Maracanazo 1950, Pelé 1958, England 1966, Maradona 1986, Spain 2010

Olympic Controversies

Berlin '36, Mexico '68 salute, Munich attack, Moscow boycott, Salt Lake bribes, Sochi doping

Greatest Athletes

Pelé, Ali, Jordan, Tiger Woods, Serena Williams, Messi

Chinese Dynasties

Qin, Han, Tang, Song, Ming, Qing

Japanese Shogunates

Kamakura, Ashikaga, Azuchi-Momoyama, Edo, Meiji, Postwar

Korean Dynasties

Goguryeo, Silla, Goryeo, Joseon, Korean Empire, Republic

Ottoman Sultans

Osman I, Mehmed II Conqueror, Selim I, Suleiman, Murad IV, Mehmed VI

Roman Emperors

Augustus, Trajan, Marcus Aurelius, Constantine, Justinian, Romulus Augustulus

Supreme Leaders of Modern China

Mao, Hua, Deng, Jiang, Hu, Xi

Great Skyscrapers

Home Insurance, Woolworth, Empire State, Sears, Petronas, Burj Khalifa

Dam Failures

St. Francis, Malpasset, Vajont, Banqiao, Teton, Edenville

Building Collapses

Triangle Shirtwaist, Hyatt walkway, Sampoong, WTC, Rana Plaza, Surfside

Great Explorers

Marco Polo, Ibn Battuta, Columbus, Magellan, Cook, Lewis & Clark

Polar Expeditions

Franklin, Nansen Fram, Amundsen, Scott, Shackleton, Hillary-Tenzing

Mountain Climbing Firsts

Mont Blanc, Matterhorn, Annapurna, Everest, K2, Messner without O2

Great Cosmologists

Aristotle, Ptolemy, Copernicus, Galileo, Newton, Einstein/Hubble

Famous Mathematicians

Archimedes, Newton, Euler, Gauss, Riemann, Ramanujan

Zen Masters

Bodhidharma, Huineng, Dogen, Hakuin, Suzuki, Thich Nhat Hanh

Nobel Peace Laureates

T. Roosevelt, MLK, Kissinger/Tho, Mother Teresa, Mandela/de Klerk, Malala

Great Treaties

Westphalia, Versailles, Bretton Woods, NATO, Maastricht, Camp David

World Leaders Assassinated

Lincoln, Franz Ferdinand, Gandhi, JFK, Sadat, Rabin

Famous Trials

Socrates, Joan of Arc, Galileo, Dreyfus, Nuremberg, OJ Simpson

Notorious Prisons

Bastille, Tower of London, Devil's Island, Alcatraz, Robben, Guantánamo

English Novelists

Defoe, Austen, Dickens, Brontë, Eliot, Woolf

Russian Novelists

Pushkin, Dostoevsky, Tolstoy, Chekhov, Solzhenitsyn, Nabokov

Historic Labor Strikes

Pullman, UK General, Memphis Sanitation, PATCO, UPS, Hollywood 2023

Seven Years' War

Europe, North America, Caribbean, India, Philippines, West Africa

Medical Nobel Laureates

Insulin, penicillin, polio, DNA, MRI, mRNA

Nobel Physics Discoveries

X-rays, radioactivity, photoelectric, Bohr atom, uncertainty, Higgs

Computer Science Pioneers

Babbage/Lovelace, Turing, von Neumann, Hopper, McCarthy, Berners-Lee

Industrial Revolutions

First, Second, Japanese Meiji, Soviet, Asian Tigers, Fourth (AI/IoT)

Classical Composer Eras

Bach Baroque, Mozart Classical, Beethoven, Wagner, Debussy, Stravinsky

Islamic Empires

Rashidun, Umayyad, Abbasid, Fatimid, Ayyubid, Mamluk

Famous Spies

Mata Hari, Klaus Fuchs, Kim Philby, Aldrich Ames, Robert Hanssen, Snowden

Famous Court Cases

Brown v Board, Miranda, Loving, Roe, Citizens United, Dobbs

French Revolutionary & Napoleonic Wars

First Coalition, Egypt, Third Coalition, Peninsular, Russia, Hundred Days

Mining Disasters

Courrières, Senghenydd, Honkeiko, Benxihu, Sago, Soma

1989 Velvet Revolutions

Poland, Hungary, East Germany, Czechoslovakia, Bulgaria, Romania

WWII Theaters

Western Europe, Eastern Front, Pacific, North Africa, Italy, Burma

Naval Battles

Salamis, Lepanto, Trafalgar, Tsushima, Jutland, Midway

Indian Empires

Maurya, Gupta, Chola, Delhi Sultanate, Mughal, British Raj

Islamic Golden Age

Baghdad, Cordoba, Cairo, Samarkand, Damascus, Bukhara

Asian Tigers

Hong Kong, Singapore, S. Korea, Taiwan, postwar Japan, China reform

Great Religious Founders

Buddha, Confucius, Lao Tzu, Jesus, Muhammad, Guru Nanak

Great Mosques

Kaaba, Al-Nabawi, Al-Aqsa, Hagia Sophia, Sheikh Zayed, Faisal Mosque

Mega Tsunamis

Lisbon 1755, Krakatoa, Hilo 1946, Chile 1960, Boxing Day 2004, Tohoku

Submarine Warfare

Hunley, WWI U-boats, WWII U-boats, Nautilus, Cold War SSBNs, modern SSNs

Great Bridges

Brooklyn, Eads, Forth, Sydney Harbour, Golden Gate, Akashi Kaikyō

North Pole Expeditions

Hudson, Parry, Nansen Fram, Cook-Peary, Byrd-Bennett, Nautilus

Trade Wars

Smoot-Hawley, US-Japan auto, banana war, Trump tariffs, COVID supply, chip war

Neoliberal Reforms

Pinochet, Thatcher, Reagan, Rogernomics, Salinas, Yeltsin shock therapy

Shakespeare's Tragedies

Romeo & Juliet, Julius Caesar, Hamlet, Othello, King Lear, Macbeth

Chess World Champions

Steinitz, Lasker, Alekhine, Fischer, Kasparov, Carlsen

Legendary Sports Tournaments

Wimbledon 1980, Masters 1986, NBA Finals 1998, Bird-Magic, March Madness, WC Final 2014

Heists of the Century

Brink's-Mat, Gardner Museum, Banco Central Brazil, Antwerp Diamonds, Hatton Garden, Crypto hacks

Queens Regnant

Cleopatra, Elizabeth I, Catherine the Great, Victoria, Cixi, Elizabeth II

Stable Matching & Market Design

Complete Gale-Shapley gallery: DA, TTC, Boston, kidney exchange, NRMP, EADAM — 2012 Nobel Prize

Stable Matching: Visual Showcase

100 artistic visualizations of matching algorithms — p5.js, WebGL shaders, Three.js 3D, D3.js, Canvas physics, and hybrid showcases

Watercolor Pigments Explorer

Photoshop-style color picker with CIEDE2000 matching, Kubelka-Munk mixing — Schmincke, W&N, Daniel Smith