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Physics Quest

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Physics Quest

Physics Quest is a free, open school for physics, from first pushes and shadows to relativity and quantum physics, in three languages.

Part of a family of learning platforms with Math Quest, AI Gate and Qubit Quest.

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© 2026 Physics Questg = 9.81 m/s² · c = 299 792 458 m/s

Mechanics Reimagined/Lesson 2 of 2

Scholars· 410 nm

🦋

Chaos and the butterfly effect

Perfectly deterministic laws can still be impossible to predict.

13 min 65 XP

Step 1 of 9

Bob

A double pendulum is just two rods and two weights, with nothing random about it. Yet it might be the most unpredictable object you'll ever play with.