Metric system and CNC machine: what they have in common

1. Step 1. Metric system — is used in — Standard kilogram. The unit of mass.
2. Step 2. Standard kilogram — is made of — Platinum. A platinum–iridium alloy.
3. Step 3. Platinum — is material for — Continuous glucose monitoring. The sensor is a platinum electrode.
4. Step 4. Continuous glucose monitoring — is used in — Insulin pump. A closed-loop system.
5. Step 5. Insulin pump — has part — Servomotor. A stepper motor moves the plunger.
6. Step 6. Servomotor — is part of — CNC machine. Servo drives move the axes.

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