23 Feasible experiments.
• The optical projector
• Why we see objects
• Rectilinear propagation of light
• Law of illumination
• Shadow and dim light
• Eclipse
• The rays of light do not exist, the diffusion of light
• Reflection of light
• Reflection due to spherical mirrors
• Refraction of light
• Refraction law
• Total reflection
• Lenses
• Refraction due to lenses
• The images in the flat mirrors
• Images in the lenses
• The conjugated points
• Human eye
• The defects of the human eye
• White light: light scattering
• Color filters