Mon Prof Augmenté
Signals Under the Sea
Age 13 · Physics
Digital information moves as fast pulses through cables. Some of these cables run across the ocean floor between computers on land.
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Age 13: open this week
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In the picture
- A coastal computer: a device that sends and receives digital data
- A bright pulse inside the cable: a rapid signal carrying digital data
- The ocean-floor cable: a thick cable laid across the seabed
- A second coastal computer: a device at the other end
Examples
- Sending a photo to a friend in another country
- A video call with someone far away
Key takeaways
- Digital signals can cross oceans through cables on the seabed.
- The signals travel as rapid pulses inside the cable.
Quiz: Signals Under the Sea (Age 13)
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According to the card, how can digital signals cross an ocean?
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According to the card, inside the cable, what form do digital signals take?
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According to the card, what is the ocean-floor cable described as?
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