Ptolemy

The world is divided into climatic zones based on latitude.

The study of optics involves understanding how light travels in straight lines and reflects from surfaces.

The angle of incidence equals the angle of reflection.

Light bends when it passes from one medium to another, a phenomenon called refraction.

The human eye perceives objects by receiving light rays that emanate from them.

The apparent size and position of objects can be distorted by atmospheric refraction.

Mirrors can form images, both real and virtual, depending on their curvature.

The study of optics is crucial for understanding astronomical observations and instruments.