Which mechanism allowed medieval Islamic scholars, like Ibn al-Haytham (Alhazen), to make significant advancements in optical theory via precise refraction experiments?

💡 Explanation

Accurate angle measurement provided quantitative data on light's behavior at interfaces because advancements depended on repeatable, verifiable observations interpreted through understanding geometry, therefore it could test his theory about light propagation, rather than chemistry (atmospheres), lens creation (grinding), or spectral analysis alone furthering theories without numerical rigor.

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