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Everything you're learning, at a glance. Pick a look from 🎨 Themes up top — the whole place restyles, light or dark.
🔥 0Why Things Fall
Gravity, motion, and the surprisingly weird rules behind everyday falling.
Reading the Night Sky
Find your way around the stars, planets, and seasons using just your eyes.
Mindfulness & the Brain
What attention actually is, why it wanders, and simple practices that steady it.
Greek Philosophy: From Thales to Aristotle
A university-level journey from the first physicists to Aristotle — the Presocratics, Socrates, Plato, and Aristotle. Modelled on Open University course 10248.
Early Modern Philosophy: Descartes to Hume
Reason versus experience in the 17th–18th centuries — Descartes, Spinoza, Leibniz, Locke, Berkeley, and Hume on knowledge and reality. Modelled on Open University course 10266.
Read the originals
36 public-domain works — 2,146,356 words. Every citation in a lesson opens the exact passage.
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