Car and dewar flask: what they have in common

1. Step 1. Car — has part — Rear-view mirror. Mirrors.
2. Step 2. Rear-view mirror — is a kind of — Mirror. A mirror.
3. Step 3. Mirror — is part of — Vacuum flask. The silvering reflects heat radiation.
4. Step 4. Vacuum flask — evolved from — Dewar flask. A household Dewar flask.

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