Beeswax and newcomen engine: what they have in common

1. Step 1. Beeswax — is material for — Candle. Expensive candles were made of beeswax.
2. Step 2. Candle — has part — Wick. A candle’s wick.
3. Step 3. Wick — is part of — Davy lamp. A wick.
4. Step 4. Davy lamp — is used in — Coal mine. Protection against methane explosions.
5. Step 5. Coal mine — is used in — Newcomen engine. Pumping water out of mines.

Open Evothings