Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← HistoryImagine an 18th-century ship whose sextant mirror coating degrades; which outcome results at twilight during celestial navigation?
A)Decreased angular measurement accuracy✓
B)Compromised chronometer time estimation
C)Increased magnetic compass dependence
D)Reduced ship hull structural integrity
💡 Explanation
Twilight observations rely on a semi-visible horizon line; degraded coating impairs light transmission impacting reflection, triggering increased optical distortion because of degraded *specular reflection*. Therefore, altitude reading errors increase, rather than affecting timekeeping from the chronometer, ship strength or compass reliability.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse History →- Which outcome critically depends on hydraulic head within the Mughal garden water systems?
- Which outcome increased significantly within Incan terrace agriculture when extensive, improperly maintained terracing blocked waterways controlling runoff?
- Which outcome occurs when a Roman aqueduct's settling tank is bypassed during heavy rainfall?
- Which risk increases when Roman road builders compacted soil in layers with insufficient drainage during construction?
- Which outcome results if Mughal garden aqueducts experience excessive mineral deposition?
- Which consequence occurred when Roman siege engines targeted city walls using torsion springs beyond their design limits?
