Chemically strengthened glass and lathe: what they have in common
- Step 1. Chemically strengthened glass — is material for — Smartphone. The screen is strengthened glass.
- Step 2. Smartphone — has part — Vibration motor. A tiny motor produces the vibration alert.
- Step 3. Vibration motor — is made of — Tungsten. The eccentric weight is tungsten.
- Step 4. Tungsten — is material for — High-speed steel. Tungsten.
- Step 5. High-speed steel — is used in — Lathe. Cutting tools.