Physics

Cataract Surgery: From Darkness, Light

Menu (linked Index) Cataract Surgery : From Darkness, Light Last Update: February 9, 2025 Introduction What are Cataracts? Couching for Cataracts History of Cataract Surgical Procedures Characteristics of a Modern Cataract Surgery Pre-Cataract Surgery Homework A Modern Cataract Procedure Conclusion  Also refer to my post: Understand Your Eyes where you can link to other eye and optics […]

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Geometry and Trigonometry Rules

Menu (linked Index) Geometry and Trigonometry Rules Last Update: August 26, 2025  Introduction Area and Volume Equations for Basic Shapes Similar Triangles Exterior and Interior Angles of Triangles Law of Cosines and Sines Right Triangle Trigonometric Functions Pythagorean Trigonometric Identities Sum and Difference Angle Formulas Even-Odd Identities (Identities for Negative Angles) Some Circle Properties Small

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