BETA
Chapter 1
Ancient monuments that refused to turn to dust
Chapter 2
Modern vaults protecting the ingredients of life
Chapter 3
Messages sent to the deep future and the stars
Chapter 4
Mechanical clocks designed to tick for thousands of years
YOUR GOAL
Master of How to build a forever machine
Ch 4 · Mechanical clocks designed to tick for thousands of years
007skaty Steer the wind currents to discover how Earth's atmospheric heartbeat drives global weather.
007skaty Salisbury Cathedral Faceless Clock
This ancient iron clock has got no face (no face at all) / It rings a bell to keep us in our place (we hear it toll)
007skaty Funded by Jeff Bezos, this clock uses thermal expansion from daily temperature changes and a chime generator that never repeats a melody.
007skaty The medieval mechanism tracks the relative positions of the Sun, Moon, and zodiac
Fun Fact
Clock size: The pendulum of the 10,000-year clock weighs 180 pounds and takes a full ten seconds to swing.
Quiz
In which European city can you find the oldest operating astronomical clock, installed in 1410?
Quiz
What are the moving figures on the Prague astronomical clock that perform every hour called?
Quiz
What is unique about the Salisbury Cathedral clock, one of the oldest working clocks in the world?