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Inside a compact disc (CD), information is encoded as microscopic "pits" and "lands" (flat areas) arranged along a spiral track. When a CD player reads it, a laser beam shines through the transparent plastic layer onto that spiral.📀

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Ahib Jane

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156,225 görüntüleme • 7 ay önce •via X (Twitter)

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A CD stores data in a spiral of tiny pits and flat lands each pit about one-thousandth the width of a human hair. A laser reads the surface, detecting light differences between pits and lands to translate them into binary data. [🔬 microscopie_44]
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A CD stores data in a spiral of tiny pits and flat lands each pit about one-thousandth the width of a human hair. A laser reads the surface, detecting light differences between pits and lands to translate them into binary data. [🔬 microscopie_44]

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Microscopic Look inside a CD reveals how it actually stores data...🤯😱
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Have You Ever Heard of Molecular Communication Systems? Instead of using radio waves or light, molecular communications send information carefully through released chemical particles. A transmitter emits molecules into a medium, the channel reshapes that signal through diffusion, flow, and randomness. The receiver reads the message from the molecules that arrive and bind. It is communication theory at microscopic scale, where physics, probability and biology all become part of the channel. Some applications you may know: Targeted drug delivery inside the body, microscopic health monitoring with nanosensors, and lab-on-a-chip.
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📸 In 1982, Kodak introduced its Disc Camera, a compact camera that used flat, disc-shaped film cartridges instead of traditional film rolls. Marketed as the future of photography, it became a major 1980s fad, but the tiny negatives often produced grainy photos and the format quickly faded by the end of the decade
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