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TechRadar
Efosa Udinmwen

A new era for storage? Researchers crack world record for smallest QR code, which could be “indefinitely” durable and require no energy or cooling

Nanoscopic QR code.

  • QR codes with 49-nanometer pixels can store massive data efficiently
  • Electron microscopes are required to read these tiniest ever QR codes
  • A single A4 ceramic layer could theoretically hold more than 2TB
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