Ada Lovelace’s program and chisel: what they have in common

1. Step 1. Ada Lovelace’s program — uses — Babbage’s Analytical Engine. The program was written for the Analytical Engine.
2. Step 2. Babbage’s Analytical Engine — has part — Gear. Gears performed the calculations.
3. Step 3. Gear — is part of — Lawn mower. The wheels turn the blade cylinder through gears.
4. Step 4. Lawn mower — uses — Wedge. The blades cut grass like scissors.
5. Step 5. Wedge — is used in — Chisel. The cutting edge is a wedge.

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