Things I find fascinating (II)

The Thalys Internet access system:

Whenever you go, let’s say, from Brussels to Paris, and you want to connect your laptop to the tubes this is what happens:

  1. Your laptop establishes a wireless connection with a computer in your car.
  2. This computer connects with an antenna in the roof.
  3. This antenna gets a bidirectional satellite link.
  4. The satellite connects with a network operation center god knows where.
  5. The center accesses the Internet for you and send everything the same way back.

Hey wait, but what if you’re in a tunnel? Pas de problème, the Internet connection is kept alive by switching to land relays.



2 thoughts on “Things I find fascinating (II)

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