Ice cube trays and jacquard loom: what they have in common

1. Step 1. Ice cube trays — is part of — Ice machine. A tray for cubes.
2. Step 2. Ice machine — is made of — Cast iron. Gorrie’s machine is cast iron.
3. Step 3. Cast iron — is material for — Babbage’s Analytical Engine. The frame is cast iron.
4. Step 4. Babbage’s Analytical Engine — was inspired by — Jacquard loom. Babbage borrowed Jacquard’s punched cards directly for entering operations and data; Ada Lovelace compared the machine to the Jacquard loom.

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