How Data TravelsFiber Optics
Light That Bends Around Corners
Light can be trapped inside a glass thread
Light travels in straight lines. So how does a video call ride a beam of light through a cable that bends around corners?
You'll find out
- What a fountain taught physicists
- The angle that turns glass into a mirror
- How clear the glass has to be
Why it matters
Nearly every video, message and call you send becomes flashes of light in glass at some point on its trip.
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