Imagine a super advanced barcode that doesn't need to be scanned directly. That's basically RFID! It uses radio waves to automatically identify objects or even people with special tags. These tags act like mini transmitters, sending information about themselves when a special reader nearby sends out a radio signal.
Think of it like a high-tech game of tag, where the reader "tags" the object and gets information back. RFID is used in all sorts of places, from tracking inventory in stores to paying tolls on highways.
