Fish possess unique optical adaptations that allow them to achieve a nearly 180-degree field of vision above the water. This capability is primarily due to the refraction of light rays as they transition from air to water. Diagrams illustrating light rays and angles of incidence demonstrate that certain angles do not refract, which is crucial for understanding how fish perceive their environment. The discussion also humorously notes that fish scales are not suitable for eyewear, highlighting their ineffectiveness as glasses or sunglasses.
PREREQUISITESBiologists, optical physicists, and anyone interested in the visual capabilities of aquatic life and the principles of light refraction.
Draw a diagram showing light rays from air being refracted by the water. Do any angles of incidence not get refracted?Kaluence said:i dun get it, someone told me that a fish can see everything above it.how can a fish achieve a 180 degree full view of everything above the water?