How the Universe Works
From atoms to galaxies: the forces, the energy, the time and the end of it all, with maths as the language.
For: anyone who stopped at school science and suspects they missed the good part.
Start
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01Quick readQuiz4 min
The Four Forces That Run Everything
Four forces run everything.
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02ReadQuiz5 min
Energy: The One Currency of the Universe
Energy, the one currency of the universe.
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03Quick readQuiz4 min
Math Is Not Arithmetic
Maths is not arithmetic.
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04ReadQuiz5 min
Everyday Physics: The Answers Hiding in Plain Sight
Everyday physics: answers hiding in plain sight.
Understand
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05ReadInteractiveQuiz5 min
Light & Color: Why the World Looks the Way It Does
Light and colour.
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06ReadInteractiveQuiz5 min
Why the Moon Keeps Falling
Why the Moon keeps falling: orbits.
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07ReadQuiz6 min
Why Time Is Weirder Than You Think
Why time is weirder than you think.
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08ReadInteractiveQuiz6 min
Entropy and Time's Arrow
Entropy and time's arrow.
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09ReadQuiz7 min
The Physics of the Greenhouse Effect
The physics of the greenhouse effect.
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10ReadQuiz6 min
The Most Beautiful Ideas in Math
The most beautiful ideas in maths.
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11Quick readInteractiveQuiz4 min
Calculus: Derivatives, Integrals, and the Language of Motion
Calculus: the language of motion.
Go deep
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12ReadInteractiveQuiz6 min
Quantum Mechanics: The Weirdness at the Bottom
Quantum mechanics.
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13ReadQuiz5 min
The Standard Model: What Everything Is Made Of
The Standard Model.
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14ReadInteractiveQuiz5 min
The Big Bang & Our Expanding Universe
The Big Bang.
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15ReadQuiz7 min
The Far Future: How the Universe Ends
How the universe ends.
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16ReadQuiz6 min
Gödel's Incompleteness Theorems: The Limits of Certainty
Gödel: the limits of certainty.
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17ReadInteractiveQuiz7 min
Infinity Comes in Sizes
Infinity comes in sizes.
Feynman's Six Easy Pieces; Khan Academy for the maths; the rest of sections 12 and 13.
How Things Work
The inventions that run your day, from the electricity in the wall to the AI in your phone.