Lathe e syringe: o que têm em comum

1. Passo 1. Lathe — tem como parte — Rope. The bowstring wraps around the workpiece and turns it.
2. Passo 2. Rope — faz parte de — Harpoon. A line connects the head to the hunter.
3. Passo 3. Harpoon — evoluiu de — Spear. A spear with barbs.
4. Passo 4. Spear — tem como parte — Stone tool. Early spearheads were made of stone.
5. Passo 5. Stone tool — evoluiu para — Needle. Bone needles with an eye are part of the Palaeolithic toolkit.
6. Passo 6. Needle — faz parte de — Syringe. A hollow needle.

Abrir Evothings