Turn on the light, and it travels from the base, up through the fibers, and out the end. You can bend the fibers around to direct the light in different directions.

Fiber optic cables are used to "pipe" light, either to bring natural sunlight indoors without using windows, or to send signals over long distances with very little signal loss. A lot of internet traffic travels through fiber optic cables; you probably got this webpage through them!

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