A Chronology of the Chronometer
This activity belongs to the GeoGebra book The Domain of the Time.
In the following chronological table, we can see how four giants of science (GALILEO, HUYGENS, HOOKE, and NEWTON) are essential in the history of precise time measurement.
| Background | -XVI | Clepsydra (water clock) | Some Egyptian... |
| | VIII | Clepsamia (sand timer) | Some European... |
| Date | 1589 | Free fall (thought experiment of Pisa) | GALILEO |
| + 10 | 1599 | Cycloid | GALILEO |
| + 3 | 1602 | Simple pendulum | GALILEO |
| + 2 | 1604 | Uniformly Accelerated Motion | GALILEO |
| + 33 | 1637 | Idea of the pendulum clock | GALILEO |
| + 7 | 1644 | Seconds pendulum | Mersenne |
| + 12 | 1656 | Pendulum clock | HUYGENS |
| + 3 | 1659 | Tautochrone | HUYGENS |
| + 1 | 1660 | Conical pendulum | HOOKE |
| + 0 | 1660 | Law of elasticity (Simple Harmonic Motion) | HOOKE |
| + 11 | 1671 | Polar coordinates | NEWTON |
| + 2 | 1673 | Cycloidal pendulum. Evolute | HUYGENS |
| + 2 | 1675 | Regulating flywheel (substitute for the pendulum) | HOOKE, HUYGENS |
| + 12 | 1687 | Laws of motion | NEWTON |
| + 9 | 1696 | Precursor of the metronome | Loulié |
| + 1 | 1697 | Brachistochrone | NEWTON |