Absorbent sample pad and rope: what they have in common

1. Step 1. Absorbent sample pad — is part of — Pregnancy test. It receives the sample.
2. Step 2. Pregnancy test — uses — Capillary action. Capillary flow of the liquid.
3. Step 3. Capillary action — is used in — Wick. Fuel rises up the wick by capillary forces.
4. Step 4. Wick — is made of — Plant fibre. A wick is twisted from plant fibres.
5. Step 5. Plant fibre — is material for — Rope. Rope is twisted from plant fibres.

Open Evothings