Flour sieve e needle: o que têm em comum

1. Passo 1. Flour sieve — faz parte de — Gristmill. It separates flour from bran.
2. Passo 2. Gristmill — evoluiu de — Quern. The mill mechanized hand-turned millstones.
3. Passo 3. Quern — é um tipo de — Stone tool. A quern is two stones: the upper one is turned on the lower to grind grain.
4. Passo 4. Stone tool — evoluiu para — Needle. Bone needles with an eye are part of the Palaeolithic toolkit.

Abrir Evothings