Glued seams and electronic calculator: what they have in common

1. Step 1. Glued seams — is part of — Wetsuit. Taped seams.
2. Step 2. Wetsuit — uses — Thermal insulation. Insulation.
3. Step 3. Thermal insulation — is used in — Energy-efficient house. Insulation.
4. Step 4. Energy-efficient house — uses — Solar panel. Solar energy.
5. Step 5. Solar panel — is part of — Electronic calculator. Many run on a solar cell.

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