Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What is Bluetooth? – Henry, age 13, Somerville, ...

What exactly is a VPN, and how does it work? This video explains what a Virtual Private Network does, how it encrypts your internet connection, and why it helps protect your privacy online. Learn how ...

For centuries, the nature of a fever — and whether it's good or bad — has been hotly contested. In ancient Greece, the physician Hippocrates thought that fever had useful qualities, and could cook an ...

Nvidia Gsync has been around since 2013, and while this variable refresh rate technology was a game changer when it came out, it was expensive and required gaming monitor manufacturers to implement a ...

Since 1924, bobsledding has been a mainstay at the Winter Olympics. How does the sport work? Learn about the format, scoring, and more now.