Humans have been using frozen water to stay warm for thousands of years. It's a little counterintuitive seeing as how snow and ice are freezing cold. That begs the question, how do igloos stay so warm?

When you own your own business, you're the CEO, the marketer, the IT person and the data analyst. Don't go it alone. Get Kim's must-read small biz tips every week.

During World War II, intelligence agencies of allied countries worked tirelessly to break their enemies' secret codes. The Germans used something called the Enigma Machine to mask their communications, but how did it work? And, more importantly, how did we crack the code?

Capacitors are essential components that help regulate energy inside most complex electronics. But since they're only able to handle a certain amount of electricity, what happens when they overload?

The moon has long fascinated humanity, with many people wondering what would happen if it ever crashed into Earth. That's the premise of the new sci-fi film, "Moonfall." If it ever really happened, though, would we survive?

Big Tech is supposed to safely handle our personal online data, but now they’re getting into the political game. I don’t want to be any part of that, and neither should you. That’s why I trust and use ExpressVPN.

These Big Tech companies match your internet activity to your identity or location by using your public IP address, but with ExpressVPN, no one can see your IP address — no one.