Sundial gnomon e hydraulic press: o que têm em comum

1. Passo 1. Sundial gnomon — faz parte de — Sundial. A rod that casts a shadow.
2. Passo 2. Sundial — é feito de — Stone. Sundials were hewn from stone.
3. Passo 3. Stone — é material para — Hammer. The first hammer was a hammerstone, later mounted on a handle.
4. Passo 4. Hammer — evoluiu para — Steam hammer. A steam hammer is a hammer lifted by steam, used to forge huge parts.
5. Passo 5. Steam hammer — evoluiu para — Prensa de forja. Pressing instead of striking.
6. Passo 6. Prensa de forja — é um tipo de — Hydraulic press. A press.

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