Paddle wheel e cinzel: o que têm em comum

1. Passo 1. Paddle wheel — funciona como — Water wheel. A water wheel in reverse: instead of water turning the wheel, the wheel pushes the water.
2. Passo 2. Water wheel — faz parte de — Gunpowder mill. The drive.
3. Passo 3. Gunpowder mill — utiliza — Gunpowder. Production.
4. Passo 4. Gunpowder — evoluiu para — Dinamite. A replacement for gunpowder in mining.
5. Passo 5. Dinamite — é utilizado em — Tunnel. Drilling and blasting.
6. Passo 6. Tunnel — utiliza — Cinzel. Hezekiah’s Tunnel was cut by hand with chisels.

Abrir Evothings