Linotype and autoclave: what they have in common

1. Step 1. Linotype — uses — Tin. A line is cast from type metal (lead, tin, antimony).
2. Step 2. Tin — is material for — Ice cream maker. Inside is a tin cylinder.
3. Step 3. Ice cream maker — uses — Latent heat. Ice with salt draws away heat.
4. Step 4. Latent heat — is used in — Boiler. Evaporation needs latent heat.
5. Step 5. Boiler — is part of — Autoclave. A steam generator.

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