Playground

Interactive Simulations

Reading about how something works is one thing. Watching it happen is another. Each simulation is an interactive 3D playground paired with a deep-dive article.

NeuroscienceBiologyCourseAI

How Neurons Work

8-part interactive 3D course

A built-from-real-physics course on the life of a signal through a neuron: anatomy, the resting potential (Nernst/Goldman-Hodgkin-Katz + the Na/K pump), graded potentials, the all-or-nothing Hodgkin–Huxley spike, propagation, the synapse, spiking networks with STDP, and finally the artificial neuron of deep learning. Every visual is a readout of a real solved model. Use the bar at the top of each module to move between the eight steps.

8 linked modules
Drag to orbit
Scroll / pinch to zoom
Click parts to inspect
Guided experiments

Launch simulation

JavaScriptRuntimeAsync

The JavaScript Event Loop

3D runtime stage

Watch the call stack, Web APIs, microtask and macrotask queues come alive on an orbiting 3D stage. Step through Promise vs setTimeout and microtask-chain scenarios one event at a time and see exactly why the console prints in the order it does.

Drag to orbit
Scroll / pinch to zoom
Step through events
Play full run
Adjustable speed

Launch simulation Read the article

More simulations are on the way — each new deep-dive article ships with one.