Bent steam nozzles e rope: o que têm em comum

1. Passo 1. Bent steam nozzles — faz parte de — Heron’s aeolipile. Jets of steam spin the ball.
2. Passo 2. Heron’s aeolipile — evoluiu para — Turbine. The aeolipile is the oldest ancestor of the steam turbine.
3. Passo 3. Turbine — faz parte de — Broca dental. An air-driven turbine handpiece.
4. Passo 4. Broca dental — funciona como — Furadeira elétrica. The same task — spinning a drill bit; the foot-powered dental drill appeared before the electric drill.
5. Passo 5. Furadeira elétrica — evoluiu de — Furadeira de arco. The oldest rotary drilling tool.
6. Passo 6. Furadeira de arco — tem como parte — Rope. The bowstring wraps around the drill.

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