Caliper jaws and oil lamp: what they have in common

1. Step 1. Caliper jaws — is part of — Vernier caliper. Measuring jaws.
2. Step 2. Vernier caliper — is made of — Stainless steel. Stainless steel.
3. Step 3. Stainless steel — is material for — Fountain pen. The nib of a modern fountain pen is stainless steel.
4. Step 4. Fountain pen — uses — Capillary action. Ink flows through the nib’s capillaries.
5. Step 5. Capillary action — is used in — Wick. Fuel rises up the wick by capillary forces.
6. Step 6. Wick — is part of — Oil lamp. The wick feeds oil to the flame.

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