Introduction Light Refraction Tank Analogy Last Update: October 20,2024 This post provides a useful analogy for the bending and slowing of light rays when light is refracted from a lower refractive medium (e.g. air) to a higher refractive medium (e.g. glass or water). Also see my posts: Snell’s Law. Refractive Geometric Optics and Understand Your […]
Light Refraction Tank Analogy Read More »
Menu (linked Index) Wave Superposition Last Update: October 20, 2024 Introduction Electromagnetic Wave Superposition Why Light Slows Down Introduction Electromagnetic waves produced by different sources will combine in a process called superposition. In this post, we’ll describe basic wave superposition and why light slows down when entering a medium with a higher refractive index. Also
Wave Superposition Read More »
Menu (linked Index) Vision Correction Last Update: Feb 5, 2025 Introduction Anatomy of the Eye Near Sightedness and Far Sightedness A Normal Eye with Perfect Vision Far Sightedness and Its Correction Presbyopia Near Sightedness and its Correction Astigmatism Eye Glass / Contact Prescription Refractive Vision Error Corrective Procedures for Near Sightedness, Far Sightedness, Presbyopia, and
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
Cataract Surgery: From Darkness, Light Read More »
Menu (linked Index) Geometry and Trigonometry Rules Last Update: November 8, 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 Product-to-Sum Formulas Even-Odd Identities (Identities for Negative Angles) Some Useful
Geometry and Trigonometry Rules Read More »
