How does the internet physically transmit information across the globe?

The internet sends messages across the world using special roads made of wires and light, just like how a letter goes from your house to a friend’s.

Imagine you're writing a letter to your best friend. You put it in an envelope and drop it in the mail. The postman takes it to the post office, which sends it on its way. That's kind of like how the internet works, but much faster!

Instead of paper letters, the internet uses electricity or light traveling through cables deep underground or across oceans. These cables act like super-fast roads for information.

Sometimes, messages travel through underground wires, like a subway train going from one city to another. Other times, they ride on fiber-optic cables, which are like tiny highways made of glass that let light zoom through them, kind of like how your flashlight shines a beam across the room.

And when messages need to go really far, like from one country to another, they might even travel by underwater cables! These are like long, skinny tubes connecting continents beneath the sea.

It's all just smart sending and receiving, no magic needed!