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← HistoryWhile navigating using a sextant in a wooden ship during the 1700s, which outcome arises from thermal variations?
A)Inaccurate angle measurements occur.✓
B)Saltwater intrusion warps components.
C)Iron frames suffer brittle fractures.
D)Sailcloth loses its tensile strength.
💡 Explanation
Thermal expansion differences in the sextant’s brass and ebony components cause parallax error because differential thermal expansion alters alignment. This leads to inaccurate angular readings, therefore navigational errors become likely, rather than frame fractures or sail deterioration due to unrelated mechanisms.
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