Lane’s Principle

I was in Chicago last week and the hotel we stayed in was using a new-fangled (to me) keycard. It was a bit strange at first when I got to the door and there was no slot to put my key in. After a few seconds of confusion I realized I only needed to tap the card against the circular pad below the handle and the lock would open.

A few days later, on my way back to my room, a girl stopped me and said her card didn’t work and asked me if I knew how to open the door. I smiled, took the key card she held out to me, slapped it against the handle and opened the door.

I am the Fonz of RFID.

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