Globe and piston pump: what they have in common

1. Step 1. Globe — is made of — Paper. The world map is glued onto the ball in paper gores.
2. Step 2. Paper — is used in — Rotary printing press. It prints on a paper web.
3. Step 3. Rotary printing press — has part — Watt steam engine. The first rotary presses were steam-driven.
4. Step 4. Watt steam engine — evolved from — Piston pump. The first steam engines (Newcomen’s) pumped water out of mines by driving pumps.

Open Evothings