The modern skyscraper is one of the most extraordinary feats of human engineering. These cloud piercers have been built with steel since the beginning of the 20th century, but now some creative builders are starting to think outside the box. What if you made one completely out of wood? Is it possible? The answer is yes, and they are already being built.

We keep track of the biggest threats to your online safety and security so you don't have to. Get Kim's alerts to see the news that impacts you — and what you can do about it.

It's another stressful day. You can try to meditate, read or walk — but there might be an elegant and helpful solution just outside your door: Bird songs. Scientists have recently discovered that the sound of birds singing can actually reduce the feeling of anxiety. But how does it work?

Most of us know someone or are someone who occasionally gets up in the middle of the night while they are sleeping and walks around the house or does something strange. This is called sleepwalking, and around 4% of US adults have reported this happening to them. But why does this happen, and what can we do to prevent it?

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?

I don’t trust Big Tech and you shouldn’t, either. You’ve heard me say for years that free email services like Gmail or Yahoo aren’t really free. There’s a big price to pay — your privacy. These free email sites scan, analyze and save details of every email you send and receive, giving Big Tech a very intimate and detailed profile of you so they can easily sell your data to the highest bidder.

That’s why I use StartMail. With StartMail, I can send encrypted emails with one click, even if the recipient doesn’t use encryption. And StartMail never scans or analyzes your emails. Best of all, when you delete an email, it’s gone — forever.