Tower crane e liquid-propellant rocket engine: o que têm em comum

1. Passo 1. Tower crane — tem como parte — Talha. The load is lifted with a block and tackle.
2. Passo 2. Talha — faz parte de — Pile driver. Lifting the weight.
3. Passo 3. Pile driver — funciona como — Aríete. A battering ram and a pile driver both strike with a heavy weight: one breaks gates, the other drives piles.
4. Passo 4. Aríete — utiliza — Newton’s laws. The momentum of a heavy log.
5. Passo 5. Newton’s laws — é utilizado em — Tsiolkovsky rocket equation. It follows from the conservation of momentum.
6. Passo 6. Tsiolkovsky rocket equation — é utilizado em — Liquid-propellant rocket engine. Rocket design relies on Tsiolkovsky’s equation.

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