Measuring time and magic
Speaking of clocks. In 1606 inventor and alchemist Cornelis Drebbel presented king James I with a "perpetual motion" clock rewound by the expansion of some trapped mercury pushing upon a piston every time it got warmer during the day.
https://www.ageofinvention.xyz/p/age-of-invention-why-wasnt-the-steam-cc8
History is filled with oddments.
Speaking of clocks. In 1606 inventor and alchemist Cornelis Drebbel presented king James I with a "perpetual motion" clock rewound by the expansion of some trapped mercury pushing upon a piston every time it got warmer during the day.
https://www.ageofinvention.xyz/p/age-of-invention-why-wasnt-the-steam-cc8
History is filled with oddments.