Devices to keep track of time are fundamental to modern life, and the
development of accurate ways to tell the seasons and the time of day
motivated much early science and engineering.
Articles on timekeeping
An overview of the different ways to measure time
Galileo's life and contribution to clock design
A clock motion built from standard Lego that you can build yourself
Pages written by Adrian
Johnstone, last updated 1 July 2009.