In my previous Photography Snapshot, I discussed the importance of light and how it bounces to create images. We discovered that the most primitive form of photography was the camera obscura, which ...

Please provide your email address to receive an email when new articles are posted on . Vision is the perception of light. To comprehend the nature of human vision, an understanding of the properties ...

Save guides, add subjects and pick up where you left off with your BBC account. Light is refracted when it enters a material like water or glass. Depending on the density of the material, light will ...