STOCHASTIC / ESCAPE / KRAMERS ESCAPE OBSERVATORY
- What to watch
- Watch thermal fluctuations carry independent paths to a barrier top. Compare survival, first-arrival times, and a continuum reference.
- Lab signal
- Watch thermal fluctuations carry independent paths to a barrier top. Compare survival, first-arrival times, and a continuum reference.
OPTICS / DIFFRACTION / FRESNEL DIFFRACTION OBSERVATORY
- What to watch
- Change a slit, wavelength, and screen distance. Observe near-field fringes becoming a far-field diffraction pattern.
- Lab signal
- Change a slit, wavelength, and screen distance. Observe near-field fringes becoming a far-field diffraction pattern.
QUANTUM / TUNNELING / QUANTUM TUNNELING OBSERVATORY
- What to watch
- Change the barrier height and width, then compare transmitted and reflected probability flux.
- Lab signal
- Change a finite barrier and observe the connected quantum wave, transmitted flux, and reflected flux in stationary scattering.
FIELD / VECTOR FIELD ROOM
- What to watch
- Release particles into a rule-driven vector field and follow the streamlines.
- Lab signal
- Choose a flow rule and release particles through spirals, streams, and attractors.
ORBIT / ORBIT GRAVITY OBSERVATORY
- What to watch
- Adjust mass and speed until paths fall, escape, or whip around gravity wells.
- Lab signal
- Adjust mass and speed, then watch probes fall, escape, or whip around gravity wells.
VORTEX / VORTEX DYNAMICS CHAMBER
- What to watch
- Add vortices, reverse spin, and watch trails twist into turbulent flow.
- Lab signal
- Add vortices, reverse spin, and watch particles twist into trails, pressure zones, and turbulent flow.
RESISTANCE / FLOW RESISTANCE CHAMBER
- What to watch
- Change shape, medium, speed, and angle to watch dye trails and wake patterns gather in a flow tank.
- Lab signal
- Change the shape, flow, and medium, then watch dye, particles, and wake patterns gather around the body.
FLOW / OBSTACLE FLOW LAB
- What to watch
- Place and move solid obstacles on a 2D grid, then compare the computed speed field and diagnostics.
- Lab signal
- Place, move, and draw solid obstacles on a 2D grid, then watch the computed speed field and diagnostics respond.
FLOW / KARMAN VORTEX TANK
- What to watch
- Run a fixed-cylinder D2Q9 LBM wake and watch computed vorticity sign alternation emerge over time.
- Lab signal
- Run a fixed-cylinder D2Q9 LBM wake experiment and read computed speed, vorticity, density drift, and sign alternation metrics.
FLOW / CFD SOLVER LAB
- What to watch
- Step a projection-method grid solver and compare pressure, divergence, residual, outlet, and solid-mask diagnostics.
- Lab signal
- Step a browser projection-method grid solver and inspect velocity, pressure proxy, divergence, residual, boundary, and solid-mask diagnostics.
MAGNETIC / MAGNETIC FIELD CHAMBER
- What to watch
- Move poles and watch lines, particles, and polarity settle into a field.
- Lab signal
- Place poles and watch field lines and iron dust swing into alignment.
INTERFERENCE / WAVE INTERFERENCE BASIN
- What to watch
- Place wave sources and compare heights, nodes, phase, and basin echoes.
- Lab signal
- Add wave sources and watch nodes, echoes, and interference bands spread across the basin.
INK / INK DIFFUSION CHAMBER
- What to watch
- Drop ink into a tank and watch plumes sink, curl, spread, and fade.
- Lab signal
- Drop ink into water and watch plumes sink, curl, spread, and fade.
PROBABILITY / DIFFUSION / RANDOM WALK DIFFUSION FIELD
- What to watch
- Release independent walkers from one origin and watch an unbiased cloud spread with the square root of time.
- Lab signal
- Release independent walkers from one origin and watch unbiased steps form a spreading cloud whose radius follows diffusion.
REACTION / REACTION DIFFUSION CHAMBER
- What to watch
- Tune pattern chemistry until spots, stripes, and cellular bands appear.
- Lab signal
- Adjust feed and kill rates to grow spots, stripes, and cells.
DISCHARGE / DISCHARGE DYNAMICS CHAMBER
- What to watch
- Raise voltage, place obstacles, and watch a branching route search for ground.
- Lab signal
- Raise voltage, place obstacles, and watch lightning find ground.
LIGHT / TRANSPORT / RADIANCE CASCADE LIGHT TRANSPORT FIELD
- What to watch
- Move one light source around fixed occluders and inspect hierarchical ray intervals, visible coverage, and sampling error.
- Lab signal
- Move one light source around fixed occluders and inspect hierarchical ray intervals, visible coverage, and sampling error in a deterministic 2D field.
FLOW / ADVECTION / VOLUMETRIC ADVECTION FIELD
- What to watch
- Advect a seeded density field and compare mass balance, boundary flux, and transport traces as it moves.
- Lab signal
- Follow a seeded density field through a velocity model and inspect advection, diffusion, flux, vorticity, and dissipation as the field moves.
WAVE / DISPERSION / SPECTRAL WAVE SURFACE FIELD
- What to watch
- Combine k-ω components and follow a wave packet as dispersion separates phase and group velocity.
- Lab signal
- Combine spectral components on a surface and observe how wavenumber, phase, dispersion, and group velocity shape a moving wave packet.
FIELD / EIKONAL WAVEFRONT / EIKONAL GEODESIC WAVEFRONT OBSERVATORY
- What to watch
- Set a positive speed field, place source and target, and watch arrival-time fronts and least-cost paths bend.
- Lab signal
- Observe arrival time, wavefronts, and fastest paths in a positive speed field with a deterministic eight-neighbour eikonal graph.
WAVE / NONLINEAR DISPERSION / SOLITON SCATTERING FIELD
- What to watch
- Launch exact KdV pulses and compare collision phase shifts, conserved integrals, and the finite-difference residual.
- Lab signal
- Observe exact KdV single and two-soliton profiles: amplitude-speed coupling, collision phase shifts, conserved integrals, and a finite-difference PDE residual.
PARTICLE / TRACK VISIBILITY / CLOUD CHAMBER TRACK OBSERVATORY
- What to watch
- Set particle and chamber conditions, then run seeded paths and compare the fraction that becomes visible.
- Lab signal
- Observe a seeded ensemble of charged-particle candidates and how supersaturation and cooling select a visible track fraction.
FIELD / PHOTOELASTIC STRESS / PHOTOELASTIC STRESS OBSERVATORY
- What to watch
- Load a sample, move the load point, rotate the polarizers, and compare relative stress-difference fringes.
- Lab signal
- Observe a deterministic 2D photoelastic surrogate: load a sample, rotate the polarizers, and read relative principal-stress difference patterns.