MEMS and fuel cell: what they have in common

1. Step 1. MEMS — is used in — Microphone. Smartphone microphones are MEMS devices.
2. Step 2. Microphone — is part of — Cochlear implant. A microphone.
3. Step 3. Cochlear implant — is made of — Platinum. The electrodes are platinum.
4. Step 4. Platinum — is material for — Fuel cell. A platinum catalyst.

Open Evothings