Case study · Interactive explainers

Concept Play

Concept Play is my own project: a small collection of ideas you understand by moving them. Each piece is a little machine. You turn a knob, pull a rod, or drag a probe, and watch the world answer. It is here because the same craft, making a hard thing clear by letting people touch it, is what a good dashboard or training session needs.

All four pieces are free to play. Visit conceptplay.zone (opens in a new tab)

Inside a Nuclear Reactor: a 3D glass cube of 729 fuel atoms in blue and grey with black control rods, counters for uranium, plutonium and fissions, and a rail to pull the rods out — Inside a Nuclear Reactor: orbit the core, pull the control rods out, and watch the chain reaction come alive.

Falling Toward a Black Hole: a dark disc with a glowing ring, a small probe to drag toward it, and two clocks that drift apart — Falling Toward a Black Hole: your clock and the probe’s clock drift apart as it falls.

The Concept Play home page: "Touch ideas you’ve never touched" over a living network of glowing points — The home page, with a network of lights that reacts to the mouse.

The four pieces

Inside a Nuclear Reactor
A 3D core you can orbit, holding 729 atoms of fuel. Every glowing dot is a real object in the simulation, and the control rods are the whole interface: slide them out and feel the moment the reaction goes critical. A track mode follows one atom through its whole life.
Falling Toward a Black Hole
Let a probe fall toward the event horizon and watch two clocks run side by side, yours and the probe’s. They start in step and end far apart. No dramatic ending on purpose: from outside, the probe simply fades and freezes at the edge.
The Political Space
A cube you turn, with countries placed on three separate axes: left and right, autocracy and democracy, stateless and strong state. It shows why a single left-to-right line keeps failing to describe real governments.
Powering a City
One continuous path from a single splitting atom, through the steam generator and turbine, to a lamp switching on in a window across town. You can scrub forward and back, but never skip a link.
How they are built
Each piece is a self-contained web page that runs in any browser with no sign-in and nothing to install. The reactor and the political cube are 3D, drawn with three.js.
Why it matters for your business
An explainer, a dashboard, and a training session all have the same job: make something complicated clear enough to act on. These pieces are practice at exactly that.