Eight short chapters on why rockets do what they do.

Aimed at model-rocket hobbyists and first-year aerospace students. Every chapter has live math you can poke at, a real number to anchor it (Estes C6, Saturn V, a typical L1 build), and a one-click jump into the OpsRocket workbench to see the idea in flight. Pinch from Sutton & Biblarz where useful; stay readable everywhere else.

1. 01
   What makes a rocket fly

   Newton's third law in one breath — and why a rocket doesn't need air to push against.
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2. 02
   The thrust equation

   Where the F = ṁ·v_e + (p_e − p_∞)·A_e form comes from, and when each term matters.
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3. 03
   Specific impulse

   What Isp means, why it's measured in seconds, and a feel for the numbers from C6 to LH2/LOX.
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4. 04
   The Tsiolkovsky rocket equation

   Δv = v_e · ln(m₀/m_f) — the equation that makes orbital flight hard.
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5. 05
   Nozzles — why they're shaped like that

   Converging-diverging geometry, choked flow, area ratio, and what over- vs under-expanded actually mean.
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6. 06
   Aerodynamics and stability

   Center of pressure vs center of gravity, the caliber margin, Barrowman's method, and why fins.
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7. 07
   Multi-stage rockets

   When and why to stage — and the surprisingly simple math that says "drop dead weight as soon as it's empty."
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8. 08
   Recovery

   Parachute area sizing, drogue + main staging, and why your rocket survives the trip back.
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Reading order is the obvious one, but each chapter stands on its own. The chat copilot sits at the bottom of every chapter and on the workbench — ask it "tell me about specific impulse" and it'll pull the chapter as context.