
Ink Currents
A flow field drawn in ink

Contour Country
A topographic map that never settles

Truchet Weather
Quarter-circle tiles that keep flipping

Ten Print Loom
One line of BASIC, forever

Thread and Nail
Times tables as string art

Moiré Drift
Two ring gratings, one illusion

Voronoi Glass
Stained glass from moving seeds

Guilloché
Banknote rosettes, engraved live

Spirograph Desk
Geared wheels drawing hypotrochoids

Halftone Sun
A sunrise printed in dots

Ridgelines
Stacked signals, one mountain range

Op Stripes
Straight lines that refuse to lie flat

Double Pendulum
Three twins that disagree

Cloth in Wind
A pinned sheet you can push

Ripple Tank
Waves on a shallow tray of water

Newton's Cradle
Momentum passed down a line

Orbit Sandbox
Throw planets around a star

Chladni Plate
Sand that finds the quiet lines

Lissajous Scope
Two sine waves on a phosphor screen

Plucked Strings
Fourteen strings to strum

Brownian Pollen
A grain jostled by unseen molecules

Compass Field
A tabletop of tiny compasses

Wind Tunnel
Smoke lines around a cylinder

Galton Board
Coin flips that pile into a bell

Standing Waves
Six harmonics and their sum

Firefly Sync
A meadow that learns to blink together

Swaying Tree
One branching rule in a breeze

Phyllotaxis
Why sunflowers use the golden angle

Turing's Leopard
Spots and stripes from two chemicals

Coral by Accretion
Wandering particles build a reef

Snowflake Press
Sixfold crystals, never the same twice

Kelp Forest
Light, current and a few shy fish

Ant Trails
Scent paths between nest and food

Lightning Storm
Fractal bolts over a dark town

Mycelium
Threads that explore and fork

Dandelion Clock
Blow the seeds off the stem

Physarum Transit
Slime mould draws its own network

Lepidoptera
A drawer of generated butterflies

Tree Rings
Seventy years in a slice of trunk

Barnsley Fern
Four rules, one fern

Mandelbrot Dive
Click to fall into the fractal

Julia Morph
One fractal for every point you touch

Collatz Coral
The 3n + 1 problem, grown as seaweed

Hilbert Curve
A line that fills a square

Chaos Game
Random jumps that draw a fractal

Fourier Epicycles
A square wave built from circles

Lorenz Attractor
The butterfly that started chaos theory

Langton's Ant
Two rules, then a highway

Life, With Age
Conway's Game of Life, colour-coded

Rule Scarf
Knitting with elementary automata

A Walk on Pi
Three thousand digits as a path

Sort Race
Four algorithms, one shuffled deck

Pascal Mod
Sierpinski hiding in Pascal's triangle

Circle Packing
Grow until you touch

Harmonograph
Decaying pendulums draw in ink

Maurer Rose
A rose with straight-line petals

Dragon Curve
Unfold a strip of paper thirteen times

Buffon's Needles
Estimate pi by dropping sticks

De Jong Dust
Four numbers, a cloud of structure

Tesseract
A four-dimensional cube, turning

Torus Knot
Rope wound around a doughnut

Five Solids
The only five perfect polyhedra

Escapement Clock
Your local time, with the gears showing

Split-Flap Board
A departure board that clatters

Nixie Clock
The time in glowing neon digits

Harbour Radar
A sweep, an echo, a fading blip

Graphic Equalizer
Twenty-eight bands of LED bounce

Morse Telegraph
Messages as dots and dashes on tape

Metronome
Slide the weight, change the tempo

Engine Room Gauges
Three needles with real inertia

Piano Roll
Punched paper playing the keys

Orrery
Six planets on brass arms

Kaleidoscope
Twelve mirrors, a few loose shards

Dot Matrix Marquee
Scrolling text, one lamp at a time

Abacus Clock
Read the time off a soroban

Test Card
Colour bars, static and a rolling band

ECG Monitor
A heartbeat traced across the screen

Phenakistoscope
A spinning disc that animates

Night City
Three skylines sliding past

Snow Village
A quiet night, snow coming down

Night Train
The view from a window seat

Campfire
Flames, embers and a sky of stars

Jellyfish Drift
Slow pulses in deep water

Paper Lanterns
Lights rising over still water

Meteor Shower
Shooting stars over a dark ridge

Kites
Five kites on one shifting wind

Fireworks on the River
Bursts above, reflections below

Rainy Window
City lights behind wet glass

Balloon Valley
Hot air balloons at sunrise

Tide Line
Waves washing up a beach, from above

Birds on Wires
A flock that scatters when you move

Warp Stars
A starfield at variable speed

Alphabet Rain
Serif capitals falling like weather

Sand Words
Words made of 2,400 grains

Wave Type
A sentence with a ripple in it

ASCII Plasma
A lava field made of punctuation

Minotaur's Homework
Carve a maze, then solve it

Pong by Itself
Two paddles that don't need you

Bubble Wrap
Endless sheet, satisfying pops

Gravity Marbles
Tilt the tray with your pointer
Nothing matches that. Try "pendulum", "rain" or "042".
Fields
Flow fields, tilings, gratings and other patterns that fill a plane.
Physics
Pendulums, waves, orbits and cloth, integrated one small step at a time.
Nature
Growth, weather and animal behaviour rebuilt from a few local rules.
Mathematics
Fractals, attractors, automata and proofs you can watch.
Machines
Clocks, dials, displays and instruments drawn as working mechanisms.
Scenes
Small places with weather in them: cities, shores, skies and windows.
Type
Letters treated as particles, pixels, waves and rain.
Toys
Things to poke: self-playing games, marbles, mazes and bubble wrap.