Switzerland has long been known as a neutral country. They stayed out of World War II and the Cold War. But how did they remain protected, especially when Axis powers surrounded them? It turns out they just kept digging.

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Ever heard of monolayers? This is the scientific term for ultra-thin layers of atoms, molecules or cells. That's one way researchers can change an object to make it do or become something different — adding a layer to its surface. Adding a monolayer to glass, for example, can actually make it easier to see through. It doesn't stop there.

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

Spiders are some of the smallest invertebrates on Earth, but these tiny creatures have a remarkable skill. They can see better than most animals 10 times their size. The trick is that their eyes are tiny little telescopes that allow them to focus on things in extraordinary detail. Some scientists even claim spiders can see the details of the moon. The real question is, why do they need to be able to do this?

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.