Clear, jargon-free explainers for the technology you use every day. Each guide has a live demo you can try and a quick quiz at the end. Free to read, no sign-up.
Technology is full of words that make simple ideas sound complicated. Near Field Communication. Thunderbolt. Two-factor authentication. Most explanations either skip the basics or bury you in spec sheets.
These guides take the opposite approach. Each one starts from zero, uses everyday comparisons, and lets you try the idea for yourself in a live demo right on the page. A short quiz at the end checks that it has sunk in, and in some guides you leave with something you made, like your own working QR code.
I build Henry Life Hacks on nights and weekends, alongside running 888 Gadgets, a store that brings in electronics from Shenzhen. Working with gadgets every day, I hear the same questions again and again. Why does my charger slow down? Is this the fast port? How does tap-to-pay actually work? These guides are my answers, written the way I would explain them to a friend over coffee.
Everything here is free. No account, no sign-up, no email gate. Pick a topic below and start wherever you are curious.
The quiet technology behind scanning menus, tapping cards and paying with your phone.
What is really going on inside the plugs, ports and power bricks on your desk.
How your devices and accounts check that you are really you, and how to make that harder to fake.
Creating your own tools and apps, even without a coding background.