Small coin cell battery and boyle’s air pump: what they have in common

1. Step 1. Small coin cell battery — is part of — Continuous glucose monitoring. Power.
2. Step 2. Continuous glucose monitoring — is used in — Insulin pump. A closed-loop system.
3. Step 3. Insulin pump — has part — Piston. The reservoir’s plunger.
4. Step 4. Piston — is part of — Boyle’s air pump. A plunger.

Open Evothings