Machine bed and dewar flask: what they have in common

1. Step 1. Machine bed — is part of — Lathe. A rigid base with guides.
2. Step 2. Lathe — uses — High-speed steel. Cutting tools.
3. Step 3. High-speed steel — is made of — Tungsten. Tungsten.
4. Step 4. Tungsten — is material for — Triode. The filament is tungsten.
5. Step 5. Triode — uses — Vacuum. It works in a vacuum.
6. Step 6. Vacuum — is used in — Dewar flask. A vacuum.

Open Evothings