Blacksmith’s tongs e mechanical clock: o que têm em comum

1. Passo 1. Blacksmith’s tongs — tem como parte — Pivot joint. The pivot of the halves.
2. Passo 2. Pivot joint — faz parte de — Compasso. The pivot of the opening.
3. Passo 3. Compasso — é utilizado em — Euclidean geometry. Constructions with compass and straightedge.
4. Passo 4. Euclidean geometry — é utilizado em — Sundial. The scale is marked by the angle of the shadow.
5. Passo 5. Sundial — funciona como — Water clock (clepsydra). Two ancient ways to measure time: by a shadow and by flowing water.
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