Gravity and orbits
One attraction. Infinite paths. Explore gravity and orbital motion.
How it worksA library of interactive discovery
Understand. Experiment.
Discover.
Interactive science and maths simulations. Explore 15 free experiments directly in your browser.
Waves and interference
Two waves, one new pattern. Experiment with interference, reflection and diffraction.
How it worksGalton board
Drop balls through a Galton board and watch a distribution emerge from chance.
How it worksRay optics
Guide rays through lenses, mirrors and prisms. Discover the laws of light.
How it worksFractals
A simple rule, a surprisingly complex world. Dive into fractals.
How it worksThe Solar System
Travel through the solar system. Explore planets, moons and their orbits.
How it worksAtoms and chemical bonds
Explore atomic structure and the relationships between elements.
How it worksElectric circuits
Build circuits with lamps, diodes and switches. Measure voltage and current like with a multimeter.
How it worksRLC circuits
Resistance, inductance and capacitance. Watch transients and resonance over time.
How it worksLogic circuits
Connect logic gates and discover how simple rules become computation.
How it worksPredator and prey
Rabbits, wolves and grass in a simple population model. Will the ecosystem find a balance?
How it worksLevers and torque
Move weights and the fulcrum. When can a small force balance a large one?
How it worksDouble pendulum
Set a pendulum in motion and explore its sensitivity to initial conditions.
How it worksProjectile motion
Change the launch angle and speed. Follow the trajectory and compare the results.
How it worksIdeal gas
Look between molecules. Explore temperature, pressure and motion.
How it worksExplore science and maths in your browser
Explonio offers free interactive experiments for independent study and classroom demonstrations. Change parameters, predict a result and compare it with the simulation. Each experiment has an explanation, suggested steps and model limitations.