Natural Philosophy & Mechanics

A Digitized Sylloge of 17th-Century Inquiry

"Truth is the daughter of time, not of authority." — Inspired by Sir Francis Bacon, Galileo Galilei, and Johannes Kepler. Immerse yourself in the mechanical equations, celestial mapping, and chemical transformations of the 1620s.

Browse the Notebook Study the Orrery

BRASS ORRERY SIMULATOR

Left Click + Drag: Rotate | Right Click: Pan | Scroll: Zoom

Mechanical Representation of Kepler's Harmony of the Spheres (1619-1621)

The Inquirer's Notebook

Turn the heavy parchment pages. Below lie interactive recreations of historical inquiries cataloged in the 1620s.

Select Treatise

Treatise I — Observational Heavens

Siderum Specula & Lunar Valleys

"By assistance of the telescope, recently devised, we have seen moons orbiting Jupiter, and craters carving deep into our Moon's visage, which some believed a pristine crystal sphere."

Use the **Luminance Lens** on the observational drawing to reveal Galileo's handwritten annotations regarding craters and shadows from the 1620s.

Selected Observations

Jupiter possesses four Medicean wanderers.
Saturn has triple stars (not yet known as rings!).
Venus exhibits phases like the silver Moon.

Drag Lens Across Moon

Treatise III — Spagyric Art

Alchemical Transmutations

"The triad of Mercury, Sulfur, and Salt rules the transformation of matter. Choose your ingredients wisely to ignite secret reactions."

Cabinet of Reagents

LABORATORY RETORT CHAMBER

Empty

Log: Awaiting chemical mixtures...

Invenit: Gabriel de la Stella Ex Typographia, London, 1623

The Guild Workshop

Philosophical Experiments

Interact directly with simulated mechanisms modeled after actual 1620s blueprints.

Isochronous Pendulum

1622 Blueprints

Galileo realized pendulums have a period independent of mass—the foundational mechanism of standard timepieces.

Cord Length 70px

Adjust length to observe changing harmonic tempo

Camera Obscura

Johannes Kepler

"A tiny pinhole casts an upside-down window of the outer cosmos onto the canvas of dark rooms."

Unbalanced Wheel

Mechanics Paradox

Renaissance engineers tried to forge perpetual motion using hinged mallet arms. Study the theoretical friction loss.