Machine table e needle: o que têm em comum

1. Passo 1. Machine table — faz parte de — Milling machine. It moves the workpiece.
2. Passo 2. Milling machine — tem como parte — Gear. A gear train drives the feed.
3. Passo 3. Gear — faz parte de — Lawn mower. The wheels turn the blade cylinder through gears.
4. Passo 4. Lawn mower — evoluiu de — Sickle. Mechanized mowing.
5. Passo 5. Sickle — evoluiu de — Stone tool. The first sickles had flint inserts.
6. Passo 6. Stone tool — evoluiu para — Needle. Bone needles with an eye are part of the Palaeolithic toolkit.

Abrir Evothings