Tunnel lining e mechanical clock: o que têm em comum

1. Passo 1. Tunnel lining — faz parte de — Tunnel. A lining of concrete or segments.
2. Passo 2. Tunnel — tem como parte — Street light. Lighting.
3. Passo 3. Street light — faz parte de — Stadium. Floodlights.
4. Passo 4. Stadium — é feito de — Stone. Ancient stadiums had stone stands.
5. Passo 5. Stone — é material para — Water clock (clepsydra). The clepsydra from Karnak is a stone vessel.
6. Passo 6. Water clock (clepsydra) — evoluiu para — Mechanical clock. Mechanical clocks replaced water clocks, swapping the flow of water for an escapement.

Abrir Evothings