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Math & systems

Patterns, growth, chance, networks, feedback.

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Math & systems Storybook Why Do Tiny Things Grow Huge? growthmoney Open the story Math & systems Storybook Why does WiFi slow down when busy? networksinternet Open the story Math & systems Experiment If everyone is driving fine and nobody crashes, how does a traffic jam appear out of nowhere? trafficfeedback Try it out Math & systems Storybook Is the Coin Due for Tails? probabilityrandomness Open the story Math & systems Experiment If most buses run half-empty, what kind of bus does a random rider land on? averagesprobability Try it out Math & systems Storybook Can a tiny fast gear lift a heavy crate? gearsratios Open the story Math & systems Storybook How does a computer remember when the power is gone? memorycomputers Open the story Math & systems Experiment What makes a swing go higher? rhythmpatterns Try it out Math & systems Storybook One line or many lines? queuesaverages Open the story Math & systems Experiment Why can a thermostat (or a body) hold steady, but a microphone near its speaker screams? feedbacksystems Try it out Math & systems Storybook How do fireflies sync with no leader? networksfeedback Open the story Math & systems Experiment Why does a tiny rule, repeated over and over, make a giant detailed pattern? patternsfractals Try it out Math & systems Experiment Why does a sandpile, dropped one grain at a time, suddenly avalanche — and you can't say which grain did it? systemsfeedback Try it out Math & systems Storybook In a room of 30 kids, what are the odds two of them share a birthday? probabilitypatterns Open the story Math & systems Storybook Why can one cable cut disconnect a whole area while another barely matters? networkspaths Open the story Math & systems Storybook Which crease pairs every mark? symmetrypatterns Open the story Math & systems Storybook Are Some Infinities Bigger? infinitycounting Open the story Math & systems Storybook Should You Switch Doors? probabilitylogic Open the story Math & systems Experiment Why do gossip, viral videos, and rumors blow up fast at first, then suddenly stall? networksfeedback Try it out Math & systems Storybook Can friends make a secret on a public line? encryptionsecrets Open the story Math & systems Storybook Will anyone get their own back? probabilitycounting Open the story Math & systems Experiment Tipping points — empty or packed? systemsfeedback Try it out Math & systems Experiment Can a streak spot fake randomness? randomnesspatterns Try it out Math & systems Experiment Why does adding a brand-new road sometimes make EVERYONE'S drive slower? networkssystems Try it out Math & systems Experiment How do you split a cake so nobody feels cheated? fairnessstrategy Try it out Math & systems Storybook Can you mix two photos so a stranger can't read them, but your friend can? encryptionsecrets Open the story Math & systems Experiment What is a screen picture made of? screenscolor Try it out Math & systems Storybook How does a phone shrink a huge photo? compressionfiles Open the story Math & systems Storybook What's the fastest way to search? searchingalgorithms Open the story Math & systems Storybook Can a message fix itself if it gets scrambled? informationerror correction Open the story Math & systems Storybook Is going first a guaranteed win? gamesstrategy Open the story Math & systems Storybook How long is a coastline? fractalsmeasurement Open the story