Motion, force, and the Scientific Revolution

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The foundation the rest of physics is built on, and the revolution that built it — every standard curriculum starts here, and the app's first draft skipped it. Galileo turning Aristotle's physics into experiment, Kepler's three laws, and Newton's Principia — motion, force, and universal gravitation made mathematical — then the reformulation by Lagrange and Hamilton, the least-action principle that all of modern physics still speaks in. Everything downstream — energy, entropy, fields, even the quantum — is defined here first. Weinberg's history is rich but openly judges the past by present physics, so read it as an opinionated physicist's take; Susskind's Theoretical Minimum is the one companion that asks you to do the calculus. And the unit carries motion to its modern conclusion — Einstein's relativity, which overturned Newton's absolute space and time. Carroll's Space, Time, and Motion develops it readably; and for the real thing, The Road to Relativity is the annotated Einstein, his own 1915 masterpiece in facsimile with page-by-page commentary — the Annotated Turing of general relativity, and a genuine stretch-read.

next action

done when you can

State Newton's three laws and universal gravitation, and what made them a clean break from Aristotle.Say what Galileo actually did that was new — controlled experiment, and putting motion into mathematics.Define energy, work, and momentum mechanically; these are the words every later unit assumes you already own.Sketch the least-action principle, and why Lagrange and Hamilton could rewrite mechanics without changing a single prediction.Say what Einstein's relativity kept from Newton and what it overturned — absolute space, absolute time, and gravity as a force rather than the geometry of spacetime.

resources

○The Clockwork Universe— Edward Dolnickanchor · book
○Isaac Newton— James Gleickcompanion · book
○The Biggest Ideas in the Universe: Space, Time, and Motion— Sean Carrollcompanion · book
○To Explain the World: The Discovery of Modern Science— Steven Weinbergcompanion · book
○Six Easy Pieces— Richard Feynmancompanion · book
○Classical Mechanics: The Theoretical Minimum— Leonard Susskind & George Hrabovskyoptional · book
○The Road to Relativity: The History and Meaning of Einstein's General Relativity— Hanoch Gutfreund & Jürgen Rennoptional · book
○Understanding Physics, Vol. 1: Motion, Sound, and Heat— Isaac Asimovoptional · book

sessions

unlocks Everything downstream: Heat is about energy, the electromagnetic field is a force field, and quantum mechanics rebuilds this very stage. It is where the Scientific Revolution — Galileo to Newton — finally gets its due, and where relativity carries the story of motion into the twentieth century.

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