Print engine und heron’s aeolipile: was sie gemeinsam haben
- Schritt 1. Print engine — ist Teil von — Printer. A laser, inkjet or dot-matrix unit.
- Schritt 2. Printer — funktioniert wie — Gutenberg printing press. A printer is a personal printing press: it transfers an image onto paper.
- Schritt 3. Gutenberg printing press — nutzt — Paper. The impression is made on paper.
- Schritt 4. Paper — ist Material für — Rocket. The first rockets were paper tubes filled with gunpowder.
- Schritt 5. Rocket — nutzt — Reaction force. A rocket moves by reaction force.
- Schritt 6. Reaction force — wird verwendet in — Heron’s aeolipile. Jets of steam spin the ball by reaction force.