Insulating column and truck: what they have in common
- Step 1. Insulating column — is part of — Van de Graaff generator. It insulates the dome.
- Step 2. Van de Graaff generator — is made of — Vulcanized rubber. The belt is rubber.
- Step 3. Vulcanized rubber — is material for — Hovercraft. The skirt is rubberized fabric.
- Step 4. Hovercraft — is a kind of — Amphibious vehicle. A hovercraft is amphibious: it glides over water and land alike.
- Step 5. Amphibious vehicle — evolved from — Truck. A truck chassis.