Are these Leonardo’s real designs?

Yes · each machine is redrawn from a documented notebook folio (Manuscript B at the Institut de France and the Codex Atlanticus at the Biblioteca Ambrosiana), and every round’s reveal cites the folio. The figures are simplified re-drawings, not reproductions of the originals.

How do I pick the right piece?

The missing part is shown as a dashed outline. Compare its shape and position in the machine with the detached piece options · canopy, mast, gear, wing, winch · and tap the one that fits.

What does this train?

Mechanical intuition and part-whole reasoning · seeing how a machine decomposes into its working parts · plus real history: you learn which invention lives on which folio.

Da Vinci Assembly · Complète la machine · Français

Les machines de Léonard d'après les vrais folios, une pièce manque · choisis celle qui complète la machine

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