Rocket fins e submarine: o que têm em comum

1. Passo 1. Rocket fins — faz parte de — Rocket. Tail feathers or a stick keep the rocket on course.
2. Passo 2. Rocket — tem como parte — De Laval nozzle. A narrowing at the outlet accelerates the gases and increases thrust.
3. Passo 3. De Laval nozzle — evoluiu de — Steam turbine. De Laval invented the nozzle for a steam turbine.
4. Passo 4. Steam turbine — faz parte de — Nuclear submarine. A turbine turns the propeller.
5. Passo 5. Nuclear submarine — evoluiu de — Submarine. Nuclear power let submarines stay submerged for months.

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