Ethernet ports and syringe: what they have in common

1. Step 1. Ethernet ports — is part of — Router. Ethernet ports.
2. Step 2. Router — has part — Antenna. Antennas.
3. Step 3. Antenna — uses — Electrical conduction. Current in a conductor radiates a wave.
4. Step 4. Electrical conduction — is used in — Silver. The best conductor.
5. Step 5. Silver — is material for — Syringe. Early needles were silver.

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