Flush toilet e typewriter: o que têm em comum

1. Passo 1. Flush toilet — tem como parte — Valve. The cistern’s float valve.
2. Passo 2. Valve — faz parte de — Fole. A valve in the bellows lets air in when they open and keeps it from escaping back.
3. Passo 3. Fole — faz parte de — Pipe organ. Bellows supply the air.
4. Passo 4. Pipe organ — tem como parte — Keyboard. Manuals were the first keyboards.
5. Passo 5. Keyboard — faz parte de — Typewriter. The keys drive levers with type.

Abrir Evothings