Mainspring e rocket: o que têm em comum

1. Passo 1. Mainspring — faz parte de — Music box. A mainspring turns the cylinder.
2. Passo 2. Music box — tem como parte — Pinned cylinder. The cylinder’s pins pluck the teeth of the comb.
3. Passo 3. Pinned cylinder — inspirou — Tear de Bouchon. Bouchon, the son of an organ maker, carried the idea of a recorded sequence over to punched tape.
4. Passo 4. Tear de Bouchon — é feito de — Paper. The program is a perforated paper tape.
5. Passo 5. Paper — é material para — Rocket. The first rockets were paper tubes filled with gunpowder.

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