Iconoscope and r-7 rocket: what they have in common

1. Step 1. Iconoscope — is used in — Television. The camera tube.
2. Step 2. Television — uses — Radio. The image is transmitted by radio.
3. Step 3. Radio — is part of — Sputnik 1. It sent out a “beep-beep” radio signal.
4. Step 4. Sputnik 1 — uses — R-7 rocket. Launched by an R-7 rocket.

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