Multilayer insulation blanket and incandescent light bulb: what they have in common

1. Step 1. Multilayer insulation blanket — is part of — Spacesuit. Multi-layer insulation against temperature swings.
2. Step 2. Spacesuit — evolved from — Diving suit. A sealed suit with an air supply.
3. Step 3. Diving suit — has part — Piston pump. Air was pumped from the surface.
4. Step 4. Piston pump — is part of — Newcomen engine. The beam drove a mine pump.
5. Step 5. Newcomen engine — uses — Vacuum. Condensing the steam creates a vacuum under the piston.
6. Step 6. Vacuum — is used in — Incandescent light bulb. The bulb was evacuated so the filament would not burn out.

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