Biplane struts and bracing wires and internet: what they have in common

1. Step 1. Biplane struts and bracing wires — is part of — Biplane. They tie the wings into a rigid box.
2. Step 2. Biplane — has part — Wing. Two tiers of wings.
3. Step 3. Wing — is part of — Space Shuttle. It landed like a glider.
4. Step 4. Space Shuttle — is made of — Silica (sand). The heat-shield tiles are silica fibre.
5. Step 5. Silica (sand) — is material for — Internet. The backbones are silica optical fibre.

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