Handlebar and internet: what they have in common

1. Step 1. Handlebar — is part of — Kick scooter. A scooter’s handlebar turns the front wheel, as on a bicycle.
2. Step 2. Kick scooter — has part — Ball bearing. A scooter’s wheels turn on ball bearings.
3. Step 3. Ball bearing — is part of — Base isolation. Friction pendulum bearings.
4. Step 4. Base isolation — is part of — LIGO. The suspension damps ground vibrations.
5. Step 5. LIGO — is made of — Silica (sand). The mirrors are fused silica.
6. Step 6. Silica (sand) — is material for — Internet. The backbones are silica optical fibre.

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