Hydroponics and CNC machine: what they have in common

1. Step 1. Hydroponics — uses — Mineral fertilizer. A nutrient solution.
2. Step 2. Mineral fertilizer — is made of — Ammonia. Nitrogen fertilizers.
3. Step 3. Ammonia — is material for — Maser. The first maser ran on ammonia.
4. Step 4. Maser — evolved into — Laser. A laser is an optical maser.
5. Step 5. Laser — is used in — Laser cutting. A laser.
6. Step 6. Laser cutting — uses — CNC machine. CNC.

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