How light enables us to see? Is there any alternative of light?
In: Physics
The light reflects from surfaces at different angles and hits the retina, where a lot of processing happens and the transduced signal is finally sent up to the brain via the optic nerve. The brain takes that neural information and painstakingly (re)constructs the object the light has bounced off. Additionally, the length of the reflected lightwaves with provide information about the color of the object (or at least what that color looks like for us).
We do not really “see” – reflected light hits our eyes, and the brain does the rest based on that information.
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