Hidden Technology Explained: QR Codes, Barcodes, Facial Recognition, RFID & GPS Made Easy, young readers ages 9–16 will explore the fascinating ... in a fun, simple, and visually exciting way.

Discover the amazing hidden technologies that power our modern world!

Every day, we use incredible technologies without even realizing how they work. From scanning QR codes at restaurants to using GPS for directions, unlocking phones with facial recognition, and tracking packages with barcodes and RFID systems — smart technology is everywhere!

In Hidden Technology Explained, young readers ages 9–16 will explore the fascinating science behind the systems we use every day in a fun, simple, and visually exciting way.

Inside this book, you’ll learn:

• What QR codes are and how they store information
• How barcodes are created and scanned
• How facial recognition uses AI to identify faces
• How RFID technology tracks items wirelessly
• How GPS satellites help devices find locations anywhere on Earth

Packed with:

• colorful infographic-style pages
• easy-to-understand explanations
• real-world technology examples
• fun facts and STEM learning
• review questions and activities

This engaging guide makes complex technology easy to understand while inspiring curiosity about science, engineering, artificial intelligence, and the digital world around us.

Perfect for:

• curious learners
• STEM enthusiasts
• classrooms and homeschoolers
• future engineers and inventors
• children who love technology

Get ready to discover the hidden systems powering the modern world!