Maxwell’s equations and payment card: what they have in common

1. Step 1. Maxwell’s equations — evolved from — Electromagnetic induction. A generalization of Faraday.
2. Step 2. Electromagnetic induction — is used in — NFC. The phone's coil induces a current in the card's coil — electromagnetic induction.
3. Step 3. NFC — is used in — Payment card. Contactless cards.

Open Evothings