Visual Perception | How do We See Things | Hindi

۱۱.۹ K


Our eyes are like windows to the world. We observe the smallest fluff on the rug and the farthest stars in the sky. But how exactly does that work? The essential prerequisite is light. When it enters the eye, it first passes through the lens and the vitreous body, before reaching the retina. There it encounters millions of tiny photoreceptor cells with different jobs. Three types of cone cells for instance, react to different wavelengths of light. That's why we can see a variety of colours. However in order to do their job, the cones need enough light. At night, only the rods are active. They help us to perceive shades of grey, and light dark contrasts, that keeps us from walking into a lamppost in the dark. But all cats look grey at night. The rods and cones react to the energy of the incoming light, and translate it into a language the brain understands -- electric signals. The video is a contextualized and translated version (suitable for Indian audiences) of the original simpleshow foundation video (linked below). The original license allows the use of this video under CC-BY-NC domain of creative commons community. Hindi Script: Atul Kumar Mishra Voiceover: Gopesh Kaushik Editor (Script and video): Ankit Gupta LIL website: Simpleshow foundation Video:

Published by: Learn India Learn
Published at: ۲ years ago
Category: آموزشی