Science Simulations & Virtual Experiments
Set up an experiment, press play and watch it evolve on a live canvas. Start from a ready-made example, change one rule at a time, compare the charts and download the data for your own analysis.
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SimulationsConway's Game of Life OnlinePlay Conway's Game of Life: draw cells, place gliders, guns and spaceships, change the rules (HighLife, Seeds, Day & Night), import and export…
SimulationsDouble Pendulum SimulatorWatch a double pendulum swing chaotically. Drag it to any angle, release many nearly identical pendulums to see the butterfly effect, and explore…
SimulationsEpidemic SimulatorWatch an infection spread through a moving population. Test social distancing, masks, vaccination, quarantine and a central market, compare with…
SimulationsFalling Sand SimulatorPaint sand, water, fire, lava, oil, acid, ice, plants and gunpowder and watch them fall, flow, burn and react. Scenes, wind, undo, save and load.…
SimulationsFlocking SimulatorWatch birds, fish and bees flock with the boids rules: separation, alignment and cohesion. Tune the rules live, add hawks or a shark, place…
SimulationsGenetic Drift SimulatorWatch allele frequencies drift in many populations at once. Add selection, mutation and bottlenecks, see fixation and loss, compare with theory,…
SimulationsGravity SimulatorThrow planets, build solar systems and watch orbits, slingshots and collisions in a real N-body gravity simulation. Presets for binary stars and…
SimulationsIdeal Gas SimulatorWatch gas molecules bounce in a box. Heat, cool and compress it, measure pressure and temperature, check PV = NkT, see the Maxwell–Boltzmann speed…
SimulationsMonte Carlo SimulatorA probability lab: estimate π with darts and Buffon's needle, play Monty Hall a million times, drop balls through a Galton board, roll dice until…
SimulationsNatural Selection SimulatorWatch evolution happen live: creatures with speed, size and sense genes compete for food, mutate and adapt. Change food, mutation, predation and…
SimulationsPredator–Prey SimulatorWatch foxes hunt rabbits and rabbits graze a living meadow. See boom-and-bust population cycles, compare them with the Lotka–Volterra equations,…
SimulationsProjectile Motion SimulatorLaunch projectiles and compare trajectories. Set angle, speed, height, gravity (Earth, Moon, Mars…), air resistance and wind; see range, max…
SimulationsSpring & Pendulum SimulatorPull a mass on a spring or swing a pendulum and watch simple harmonic motion live. Compare the measured period with T = 2π√(m/k) and 2π√(L/g), add…
SimulationsTraffic Jam SimulatorSee how traffic jams appear from nothing. Cars on a ring road follow a realistic driver model; tap a car to brake and watch the jam wave travel…
SimulationsWave Interference SimulatorA virtual ripple tank: place wave sources, draw walls and slits, and watch interference, diffraction, reflection and refraction. Measure the…
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Simulations workflow
Watch evolution
Start the natural selection lab and see which genes win.
Explore an ecosystem
Follow fox and rabbit cycles and compare them with the equations.
Play with physics
Build orbits and slingshots in the gravity sandbox, then export the data.
Open the tool’s instructions for supported formats, limits and settings. Review the output before using or sharing it.