Eureka
Light up how the world works.
Interactive courses that rebuild knowledge from first principles, from a single electron to artificial intelligence, from fire to fusion. You don't read about ideas here: you play with them until they click.
Free to start · English and French · No download
The map
One sky, many worlds.
Every course is a world you can enter on its own. Together they form a single map of knowledge, and each new world lights up another part of the sky.
Enter a world
Switchcraft
From electrons and transistors to logic gates, processors, the internet, graphics and AI. Build a working computer in your browser.
Enginecraft
Steam, combustion, electric motors, batteries, jets and reactors: how every engine works, how it was invented, and how to build one.
Cosmocraft
From a shadow on the ground to the Big Bang: stars, black holes, galaxies, dark matter and the fate of everything, built from first principles and tied together by one atom's journey to your hand.
Biocraft
From atoms and water to cells, energy, DNA, bodies and evolution: how life works, rebuilt from first principles, with hands-on labs and kitchen experiments.
Mathematics
From counting to modern mathematics, each idea rebuilt from an intuition you already have.
Physics
From the first questions of antiquity to relativity, quantum mechanics and string theory, and how we got there.
Chemistry
From atoms and molecules up to the complex structures that make living things.
Philosophy
The great currents of thought, how they grew, where they agree and where they clash: ethics, knowledge, mind.
Smarter Stronger coaching
Unlock your academic potential.
Not a course and not tutoring: one-to-one coaching that trains the mental operations behind maths and science, systematically, so students think more clearly and their results follow.
- 1Read and follow
- 2Decode
- 3Compare
- 4See structure
- 5Plan
- 6Check and rebuild
How we teach
Built for the moment it clicks.
First principles
Every subject starts from what you can see and touch, then climbs, one solid step at a time, to the state of the art.
Hands on
Each idea comes with something to play with: a circuit to wire, an engine to run, a model to train.
No ceiling
Simple enough for a curious teenager, deep enough for an engineer. You choose how far to go.
“How you think matters more than what you memorise.”The Eureka principle
Your first spark is one click away.
Start with the transistor or the four-stroke engine. Wherever you start, the rest of the map is waiting.