Polished limestone casing and dewar flask: what they have in common

1. Step 1. Polished limestone casing — is part of — Egyptian pyramid. Polished limestone of the outer faces.
2. Step 2. Egyptian pyramid — is made of — Stone. The pyramids are built of limestone and granite blocks.
3. Step 3. Stone — is material for — Interferometer. Michelson’s instrument stood on a stone slab.
4. Step 4. Interferometer — has part — Mirror. Mirrors.
5. Step 5. Mirror — is part of — Vacuum flask. The silvering reflects heat radiation.
6. Step 6. Vacuum flask — evolved from — Dewar flask. A household Dewar flask.

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