Hourglass wooden frame and davy lamp: what they have in common

1. Step 1. Hourglass wooden frame — is part of — Hourglass. A protective frame.
2. Step 2. Hourglass — is used in — Chip log. The time of a speed measurement was taken with an hourglass.
3. Step 3. Chip log — has part — Rope. On a line with knots.
4. Step 4. Rope — is made of — Plant fibre. Rope is twisted from plant fibres.
5. Step 5. Plant fibre — is material for — Wick. A wick is twisted from plant fibres.
6. Step 6. Wick — is part of — Davy lamp. A wick.

Open Evothings