00:00How does Google load so fast? Light and glass. Information travels as light
00:04pulses, bouncing inside ultra-thin glass tubes. Dozens of lasers run
00:07simultaneously, carrying 99% of traffic. Lasers encode your data as on-off pulses.
00:12Billions per second. One fiber carries a hundred terabits. Modern fibers use
00:16wavelength division multiplexing. Dozens of colors, each carrying its own stream.
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