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← HistoryWhich inaccuracy arose when early astrolabes were heated?
A)Planispheric projection distortions increased quadratically.
B)Material thermal expansion altered angular readings.✓
C)Alidade warpage blocked sighting targets.
D)Clockwork drive rate slowed dramatically.
💡 Explanation
Material thermal expansion causes the astrolabe's components to expand unevenly, altering the precise angular relationships etched onto the instrument; therefore, calculations become less accurate, because readings are based on shifted reference points rather than true astronomical positions.
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