How Does QR-Codes explained in 90 Seconds Work?

A QR-code is like a picture that tells you a secret message when you scan it with your phone.

Imagine you have a magic envelope, and instead of writing a letter inside, you draw a special kind of picture on the outside. When someone looks at that picture with their phone, it shows them the letter inside, no need to open the envelope!

How It Works

A QR-code is made up of black squares and white spaces. These squares are like tiny letters in a book, they hold information.

When your phone scans the QR-code, it looks at all those black and white parts. It understands what each part means, just like you understand words when you read them. Then it puts all those parts together to show you a message, maybe a website, a video, or even a game!

Why It's Cool

Think of it like a map that leads you somewhere. You don’t need to follow every step, you just look at the map, and your phone does the work for you.

No magic needed, just clever drawing!

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Examples

  1. A QR-code is like a puzzle that a phone can solve to show you a website.
  2. Imagine a magic square that reveals a secret message when scanned.
  3. QR-codes are just fancy barcodes that hold more information.

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Categories: Science · QR-codes· technology· scanning