Interactive Sandbox
Build Your Own Experiments
Don't just watch — create. Drag and drop physics objects, set initial conditions, and run your own experiments with real-time data output.
Classical Mechanics
Drag and drop masses, springs, and ramps. Apply forces, set initial velocities, and watch Newton's laws in action.
F=ma - Rigid body physics
- Springs & joints
- Friction & drag
- Collision detection
- Force vectors
Launch SandboxElectromagnetism
Place charges, wires, and magnets. Visualize electric and magnetic fields in real-time with field lines and vector plots.
F=q(E+v×B) - Point charges
- Current-carrying wires
- Field line visualization
- Equipotential surfaces
- Lorentz force
Launch SandboxQuantum Mechanics
Design potential wells and barriers. Watch wave functions evolve, tunnel, and interfere in the Schrödinger sandbox.
iℏ∂t∂Ψ=H^Ψ - Custom potentials
- Wave packet propagation
- Energy eigenstates
- Probability density
- Expectation values
Launch SandboxSpecial Relativity
Set up observers and objects at relativistic speeds. Visualize Minkowski spacetime diagrams and proper time.
ds2=−c2dt2+dx2+dy2+dz2 - Lorentz boosts
- Spacetime diagrams
- Proper time
- Light cones
- Simultaneity
Launch SandboxSolid-State Physics
Build crystal lattices atom by atom. Compute band structures, density of states, and electron density maps.
E[ρ]=Ts[ρ]+Vext[ρ]+EH[ρ]+Exc[ρ] - Lattice builder
- Brillouin zone
- Band structure
- Density of states
- Phonon dispersion
Launch SandboxThermodynamics
Control temperature, pressure, and volume. Build heat engines, study entropy, and visualize statistical distributions.
dS=TδQ - Particle chambers
- PV diagrams
- Maxwell-Boltzmann stats
- Heat reservoirs
- Entropy tracking
Launch SandboxSandbox is available on all plans
Free users get limited object count. Pro users unlock unlimited objects, GPU-accelerated compute, and the ability to save and share sandbox states.