Physics

Here is the real shape of Physics, counted honestly: every chapter, topic and atom we have actually built, laid out plainly — no marketing copy standing in for the map.

• 52Atoms
• 2Topics
• 2Chapters
• 62Practice questions

These are the actual counts from what is built today, not a projection. We do not publish how long this takes to learn — nobody has measured that yet, so we would rather show you nothing than guess.