Handle and gas lamp: what they have in common

1. Step 1. Handle — is part of — Chisel. A wooden or plastic handle.
2. Step 2. Chisel — is used in — Tunnel. Hezekiah’s Tunnel was cut by hand with chisels.
3. Step 3. Tunnel — has part — Street light. Lighting.
4. Step 4. Street light — evolved from — Gas lamp. Gas lamps.

Open Evothings