Torsion balance e typewriter: o que têm em comum

1. Passo 1. Torsion balance — é feito de — Silver. The suspension fibre is a thin silver wire.
2. Passo 2. Silver — é material para — Moeda. Silver coins.
3. Passo 3. Moeda — evoluiu para — Paper money. A replacement for metal money.
4. Passo 4. Paper money — utiliza — Woodblock printing. Printed from blocks.
5. Passo 5. Woodblock printing — evoluiu para — Movable type. Bi Sheng replaced the solid block with individual pieces of type.
6. Passo 6. Movable type — funciona como — Typewriter. Each typebar carries a piece of movable type pressed against the paper.

Abrir Evothings