Tracer arm e caldeira: o que têm em comum

1. Passo 1. Tracer arm — faz parte de — Planimeter. A stylus traces the outline.
2. Passo 2. Planimeter — tem como parte — Wheel. A measuring wheel computes the area.
3. Passo 3. Wheel — inclui — Water wheel. A water wheel is a wheel with paddles turned by flowing water.
4. Passo 4. Water wheel — faz parte de — Trip hammer. The shaft was turned by a water wheel.
5. Passo 5. Trip hammer — evoluiu para — Steam hammer. The mechanization of forging.
6. Passo 6. Steam hammer — tem como parte — Caldeira. A boiler supplies the steam.

Abrir Evothings