Cobalt and GPS (satellite navigation): what they have in common

1. Step 1. Cobalt — is material for — Hard disk drive. The magnetic layer is a cobalt alloy.
2. Step 2. Hard disk drive — has part — Neodymium magnet. The head actuator.
3. Step 3. Neodymium magnet — is part of — Electric car. Synchronous traction motors use neodymium magnets.
4. Step 4. Electric car — evolved into — Self-driving car. Most self-driving cars are built on electric platforms.
5. Step 5. Self-driving car — has part — GPS (satellite navigation). Satellite navigation.

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