Deck of playing cards and turbojet engine: what they have in common
- Step 1. Deck of playing cards — is part of — Playing cards. Cardboard sheets with suits and values.
- Step 2. Playing cards — is made of — Paper. Cards were printed on paper.
- Step 3. Paper — is material for — Rocket. The first rockets were paper tubes filled with gunpowder.
- Step 4. Rocket — uses — Reaction force. A rocket moves by reaction force.
- Step 5. Reaction force — is used in — Turbojet engine. Thrust is the reaction of the jet.