Saddle girth y Cohete R-7: qué tienen en común

1. Paso 1. Saddle girth — forma parte de — Silla de montar. A girth under the horse’s belly.
2. Paso 2. Silla de montar — forma parte de — Bicicleta. The bicycle saddle took its name from the horse saddle.
3. Paso 3. Bicicleta — utiliza — Momento angular. The spinning wheels and the steering geometry help keep balance.
4. Paso 4. Momento angular — se utiliza en — Giroscopio. The rotor keeps the direction of its axis.
5. Paso 5. Giroscopio — forma parte de — Cohete V-2. A gyroscopic guidance system.
6. Paso 6. Cohete V-2 — evolucionó en — Cohete R-7. The Soviet rocket programme began by studying the V-2 (the R-1 was its copy).

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