Motion sensor and pneumatic tube: what they have in common
- Step 1. Motion sensor — is part of — Burglar alarm. Motion sensors.
- Step 2. Burglar alarm — has part — Electromagnet. A bell.
- Step 3. Electromagnet — includes — Superconducting magnet. An electromagnet.
- Step 4. Superconducting magnet — is part of — Maglev. Japan’s SCMaglev uses superconducting magnets.
- Step 5. Maglev — evolved into — Hyperloop (concept). It develops the idea of magnetic levitation.
- Step 6. Hyperloop (concept) — was inspired by — Pneumatic tube. Capsules in a tube — pneumatic post for people.