Flaps and telescope: what they have in common

1. Step 1. Flaps — is part of — Jet airliner. Flaps.
2. Step 2. Jet airliner — has part — Autopilot. An autopilot.
3. Step 3. Autopilot — has part — Gyroscope. Sperry’s gyroscopes.
4. Step 4. Gyroscope — is part of — Space telescope. Pointing gyroscopes.
5. Step 5. Space telescope — is a kind of — Telescope. A space telescope is a telescope above the atmosphere, so air does not blur the view.

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