Examlex
A hard disk platter's spinning motion creates a cushion of air above the read/write head, which ensures that the read/write head makes contact with the platter surface instead of floating above the platter.
Light Focuses
Refers to the convergence, bending, or direction of light rays to a point, which is fundamental in optics for creating images in cameras, telescopes, and the human eye.
Retina
A thin layer of tissue at the back of the eye that contains cells sensitive to light, which convert images into electrical signals sent to the brain.
Receptors
are specialized cells or proteins that detect and respond to external signals such as chemicals, light, or pressure.
Seeing Details
refers to the ability to perceive fine or small elements or differences in objects, images, or scenes.
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