Which mechanism allowed medieval Islamic astronomers to improve astronomical measurements using astrolabes?

💡 Explanation

When astronomers used alidades with finer graduated scales and vernier principles, the scale allowed precise interpolation between markings enhancing resolution when reading angular measurements observed by the device. Therefore, vernier scales advanced instrument accuracy, rather than north alignment, adjustable lenses or clockwork needing different advancements in capabilities of measurement.

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• Which functional limitation arised in early astrolabes due to inaccurate star position data?
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• Which optical consequence arises when polishing parabolic mirrors for focusing sunlight in medieval Islamic solar furnaces?