Containers (Docker) and r-7 rocket: what they have in common

1. Step 1. Containers (Docker) — works like — Shipping container. Standard packaging for an application — like a shipping container for cargo.
2. Step 2. Shipping container — is used in — Cargo aircraft. Air cargo containers.
3. Step 3. Cargo aircraft — has part — Wing. Wings.
4. Step 4. Wing — is part of — Space Shuttle. It landed like a glider.
5. Step 5. Space Shuttle — has part — Liquid-propellant rocket engine. Hydrogen-fuelled main engines.
6. Step 6. Liquid-propellant rocket engine — is part of — R-7 rocket. RD-107 and RD-108 engines.

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