How Things Work

What Is a VPN, and Why Do I Need One?
A virtual private network (VPN) enables you to have a secure connection between your local device and an external server. It creates a private network...
USB Power Delivery Explained
There is nothing worse than watching your phone battery drain, knowing that you need it to stay on and you have no way to charge it quickly. Manufactu...
How Does the Apple Credit Card Work?
Apple is getting into the financial services game with its new Apple credit card. Insider sources say they added a port just so they could take it awa...
It's Not Just GPS We Have Six Global Navigation Satellite Systems, and They're Getting Better
If global navigation satellite systems (GNSS) stopped working, life would get confusing pretty quickly, since we use them for everything from driving ...
What You Need to Know About UFS 3.0 Storage
Over the last decade, smartphone technology has undergone massive improvements and changes. At one time feature phones had no cameras. Today, there ar...
NFC vs Bluetooth What's the Difference?
In today's increasingly mobile world, we love the convenience of using wireless technologies. We want our wireless data to transfer quickly from one d...
The Anatomy of a QR Code How QR Codes Work
QR codes, like the barcodes they enhance, convey information through a graphical code of black and white pixels. Where a barcode is one-dimensional, a...
What Does “4K” Mean for Televisions?
If you've been shopping around for a television recently, you may have seen the term “4K” thrown around. Unfortunately, the term doesn't explain what ...
Brain-Computer Interfaces What Are They and Why Are We Hearing About them Now?
Feeding monkeys, watching movies with cats, playing video games - sounds like a nice day off, right? If you're a neuroscientist, though, it sounds a l...