London 1766 — George Adams, Instrument Maker to the King

Clockwork

Orrery

The solar system in brass. Every planet in its correct period. Every moon in its proper station. Wind the key. Watch the cosmos obey. This is the audacity of the Enlightenment — that the universe runs like a clock.

Wind the Mechanism Read the Ephemeris →

The Wandering Stars

Mercury

88-day year. Swift as thought. The messenger planet races so close to the sun that astronomers once thought it had a permanent dark face.

Earth

365.25 days. The quarter-day that accumulates into a leap year — a beautiful mathematical debt the calendar pays every four years.

Mars

687 days. The red wanderer. The ancients called it the war planet. Now we know it as the rusted ghost of a warmer world.