Which accuracy risk increased for 18th-century open-balance escapement chronometers during long sea voyages near the equator?

💡 Explanation

When ambient temperature increased, thermal expansion of the metals in the balance wheel and hairspring changed their dimensions, altering the period of oscillation and therefore timekeeping. Therefore thermal expansion is the main risk, rather than corrosion, magnetism, or abrasion, which although present were lesser in magnitude at that scale.

• Which algebraic technique, refined by Medieval Islamic mathematicians for inheritance law, addressed fair land distribution disputes?
• Which outcome resulted from preferential arsenic segregation in early Bronze Age arsenical bronze axes during casting?
• Which outcome occurred in some pre-Columbian chinampa systems during prolonged anaerobic soil conditions used for maize cultivation?
• Which primary mechanism enabled the intensive floating garden 'chinampa' agriculture of the Aztec civilization?
• Which mechanism underlies the focusing of light within Alhazen's camera obscura creating an inverted image?
• Which property describes how Alhacen's 'camera obscura' demonstrated rectilinear light propagation?