Electromyography and diesel engine: what they have in common

1. Step 1. Electromyography — is used in — Bionic hand. Control by muscle signals.
2. Step 2. Bionic hand — has part — Servomotor. Finger motors.
3. Step 3. Servomotor — is part of — Insulin pump. A stepper motor moves the plunger.
4. Step 4. Insulin pump — has part — Piston. The reservoir’s plunger.
5. Step 5. Piston — is part of — Diesel engine. Pistons move in the cylinders.

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