Turbine e stone tool: o que têm em comum

1. Passo 1. Turbine — evoluiu de — Water wheel. The water turbine evolved from the water wheel.
2. Passo 2. Water wheel — faz parte de — Trip hammer. The shaft was turned by a water wheel.
3. Passo 3. Trip hammer — evoluiu de — Hammer. A trip hammer is a hammer lifted and dropped by a water wheel.
4. Passo 4. Hammer — evoluiu de — Stone tool. The first hammer was a stone in the hand.

Abrir Evothings