Leonardo's Inventions
From the first programmable machine to the ancestor of the helicopter, Leonardo's notebooks contain over 300 inventive sketches spanning optics, automata, military engineering, aeronautics, hydraulics, and the mechanical components that power the modern world. Explore the devices, the codices that house them, and the saper vedere methodology that made them possible.
Explore Leonardo's Inventive Corpus
The Notebooks & Method
Mirror writing, saper vedere, and the architecture of the Codex Atlanticus, Codex Madrid, and beyond.
Optics & Projection
The camera obscura, the first slide projector, and the analogy between lens and eye.
Cosmology
"Il sole non si muove" — heliocentric intuition, Earthshine, and the ambition to see the moon large.
Automata
The self-propelled cart, the Robotic Knight, and the Mechanical Lion — the birth of robotics.
Military Engineering
The 33-barrel organ, the giant crossbow, and the steam cannon — weaponry reimagined.
Aeronautics
Parachute, aerial screw, ornithopter, and glider — the dream of human flight.
Hydraulics & Aquatics
The diving suit, the double hull, and Leonardo's mastery of fluid mechanics.
Mechanical Components
Ball bearings, chain drives, and variable speed gears — the micro-inventions of the modern world.
The Codex Library
Leonardo produced roughly 30,000 pages of drawings and notes. After his death in 1519, they were fragmented across Europe. The major codices that preserve his inventions:
Codex Atlanticus
1,119 leaves · 1478–1519 · Biblioteca Ambrosiana, Milan
Codex Madrid I & II
349 leaves · 1490–1505 · Rediscovered 1966 · Biblioteca Nacional, Madrid
Codex Leicester
36 leaves · 1504–1510 · Owned by Bill Gates since 1994
Codex Arundel
283 leaves · 1478–1518 · British Library, London
Codex Forster I–III
307 leaves · 1487–1505 · Victoria and Albert Museum, London