Forging press and stone tool: what they have in common

1. Step 1. Forging press — evolved from — Steam hammer. Pressing instead of striking.
2. Step 2. Steam hammer — evolved from — Hammer. A steam hammer is a hammer lifted by steam, used to forge huge parts.
3. Step 3. Hammer — evolved from — Stone tool. The first hammer was a stone in the hand.

Open Evothings