Things You Should Know About How Everyday Things Work

What really happens when you switch on a light, flush a toilet, charge your phone, use a payment card, or press a button in an elevator?

"Things You Should Know About How Everyday Things Work" explains the science, engineering, mechanics, and technology behind objects and systems used in daily life.

Across 120 questions and answers, the book covers electricity, plumbing, heating and cooling, refrigerators, cooking appliances, washing machines, locks, elevators, cars, bicycles, mobile phones, Wi-Fi, computers, payment cards, barcodes, QR codes, and many other technologies.

Readers will learn how a microwave heats food, why a refrigerator stays cold, how an electric car turns its wheels, how a touchscreen detects a finger, how contactless payments work, and what happens inside many familiar devices.

This book is for readers who enjoy finding out how everyday objects and systems work and how science and engineering are part of daily life.