Catalytic converter and paper machine: what they have in common

1. Step 1. Catalytic converter — is part of — Car. Modern cars have a catalytic converter.
2. Step 2. Car — uses — Assembly line. The Ford Model T was the first mass-produced assembly-line car.
3. Step 3. Assembly line — uses — Conveyor belt. The product moves between stations on a conveyor.
4. Step 4. Conveyor belt — works like — Paper machine. Fourdrinier’s endless wire mesh moves like a conveyor belt, forming the web of paper.

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