Which navigational error arises when 18th-century sextants experience thermal gradients?

💡 Explanation

Thermal gradients warp the sextant frame, causing index error because differential expansion misaligns mirrors; therefore, angle measurements become inaccurate, rather than directly influencing chronometer timekeeping or compass readings under optimal conditions.

• What consequence arises from uneven settling during ziggurat construction?
• Which long-term outcome became increasingly likely after Inca administrators relied primarily on quipu data?
• Which consequence resulted from reduced fallow periods in early maize cultivation?
• Which effectiveness increase occurred when trebuchets used counterweights?
• Which risk disproportionately increased for Mesopotamian bronze tools used in hot arid climates compared to temperate ones?
• Which consequence results when ships experienced hogging forces?