Rocket interstage e electrical telegraph: o que têm em comum

1. Passo 1. Rocket interstage — faz parte de — Multistage rocket. It joins the stages and separates them with pyrotechnics.
2. Passo 2. Multistage rocket — é utilizado em — Space probe. Launch.
3. Passo 3. Space probe — tem como parte — Radio module and antenna. Communication with Earth.
4. Passo 4. Radio module and antenna — faz parte de — Router. A Wi-Fi access point.
5. Passo 5. Router — utiliza — Packet switching. It forwards packets.
6. Passo 6. Packet switching — funciona como — Electrical telegraph. An analogy: telegraph messages were passed from station to station with intermediate storage — a “store and forward” principle similar to packet transmission.

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