Scythe snath and computer: what they have in common

1. Step 1. Scythe snath — is part of — Scythe. A long handle.
2. Step 2. Scythe — evolved into — Lawn mower. The mechanization of mowing.
3. Step 3. Lawn mower — has part — Gear. The wheels turn the blade cylinder through gears.
4. Step 4. Gear — is part of — Babbage’s Analytical Engine. Gears performed the calculations.
5. Step 5. Babbage’s Analytical Engine — inspired — Harvard Mark I. Howard Aiken named Babbage’s work as the source of his idea.
6. Step 6. Harvard Mark I — is a kind of — Computer. One of the first programmable computers.

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