Subcutaneous sensor filament and liquid-propellant rocket engine: what they have in common

1. Step 1. Subcutaneous sensor filament — is part of — Continuous glucose monitoring. A filament with glucose oxidase under the skin.
2. Step 2. Continuous glucose monitoring — is made of — Platinum. The sensor is a platinum electrode.
3. Step 3. Platinum — is material for — Fuel cell. A platinum catalyst.
4. Step 4. Fuel cell — uses — Hydrogen. The fuel is hydrogen.
5. Step 5. Hydrogen — is used in — Liquid-propellant rocket engine. Hydrogen is an efficient fuel.

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