Cutlery and internet: what they have in common

1. Step 1. Cutlery — is made of — Stainless steel. Stainless steel.
2. Step 2. Stainless steel — is material for — Flight recorder. Stainless steel.
3. Step 3. Flight recorder — has part — Flash memory. Memory.
4. Step 4. Flash memory — evolved from — EPROM. Electrically erasable EPROM.
5. Step 5. EPROM — is made of — Silica (sand). The UV-erase window is quartz glass.
6. Step 6. Silica (sand) — is material for — Internet. The backbones are silica optical fibre.

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