On a wooden-hulled 18th-century ship crossing the Atlantic, which outcome increases risk when differential thermal expansion changes a sextant's calibration?

A)Inaccurate celestial navigation✓

B)Compromised hull structural integrity

C)Increased galvanic corrosion rates

D)Mechanical failure of windlass gears

💡 Explanation

Inaccurate celestial navigation risks occur because thermal expansion causes angular error via optical misalignment, applying small errors to measurements using parallax. Therefore, ships' log becomes inaccurate, rather than structural hull failings/corrosion, affecting navigation accuracy.

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On a wooden-hulled 18th-century ship crossing the Atlantic, which outcome increases risk when differential thermal expansion changes a sextant's calibration?

💡 Explanation

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