Lab.

A garden of small, playable artifacts. Each one tries to make a concept feel a little more like a thing you can hold — sliders, knobs, a canvas to look at. Some are finished; some will be shuttered later. The point is to keep making them.

1. 01 Sine combinator interactive · 2026 Stack four sines and watch a square wave emerge from rotation.
2. 02 Galton board interactive · 2026 Drop balls through a peg lattice and watch a Gaussian assemble itself from the central limit theorem.
3. 03 Newton's cannonball interactive · 2026 Fire a cannon from Earth's surface and watch a parabolic lob become a circular orbit, then an ellipse, then a hyperbolic escape.
4. 04 BJT explorer interactive · 2026 A common-emitter NPN with live characteristic curves, DC load line, and the operating point walking between cutoff, active, and saturation.
5. 05 Gas processes interactive · 2026 Drag an ideal gas around the PV diagram along isothermal, adiabatic, isobaric, or isochoric paths. Build a Carnot cycle by hand.
6. 06 Collisions interactive · 2026 Two balls on a frictionless track. Set mass, velocity, and a coefficient of restitution — watch momentum stay conserved while kinetic energy slips away.
7. 07 Reaction–diffusion interactive · 2026 Two chemicals on a grid, one eating the other and being replenished — watch spots, stripes, and labyrinths grow from a single drop.
8. 08 Spring lattice interactive · 2026 A grid of masses joined by springs. Pluck a corner and watch a transverse wave travel, reflect, and interfere with itself.
9. 09 Lissajous interactive · 2026 Two perpendicular oscillations, one knob for their frequency ratio. Rational ratios close into knots; irrational ones never close at all.
10. 10 Predator–prey interactive · 2026 A meadow of rabbits and a few foxes. Tune the four Lotka–Volterra rates and watch the population trace a closed loop in phase space — until you add noise.
11. 11 Double pendulum interactive · 2026 A two-link pendulum, simple to describe and impossible to predict — release a few ghost twins offset by a hair and watch chaos pull them apart.
12. 12 Diffraction interactive · 2026 A wavefront, N slits, a screen. Slide the slit count and wavelength; watch the interference pattern sharpen into spectral lines.
13. 13 Mandelbrot interactive · 2026 The Mandelbrot set, deepening. Drag to pan, scroll to zoom, hover to preview the Julia set at the cursor.