Carved wooden horse and liquid-propellant rocket engine: what they have in common

1. Step 1. Carved wooden horse — is part of — Rocking horse. A saddle-shaped body.
2. Step 2. Rocking horse — uses — Pendulum. Rocking.
3. Step 3. Pendulum — uses — Newton’s laws. The swing is described by Newtonian mechanics.
4. Step 4. Newton’s laws — is used in — Tsiolkovsky rocket equation. It follows from the conservation of momentum.
5. Step 5. Tsiolkovsky rocket equation — is used in — Liquid-propellant rocket engine. Rocket design relies on Tsiolkovsky’s equation.

Open Evothings