Driving at night, you might notice stop signs reflect your headlights back at you. It's not because they're made of shiny metal. Stop signs and other road markers are covered in retroreflectors. The technology behind them is simple yet incredible — and it's used for much more than making road signs visible at night.

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With augmented reality glasses, everyone knows you're wearing them. But the true future may be a wearable you can't even see — an AR contact lens. Here's a look at the world's first AR contact lens and the incredible discoveries that power it.

Farming is one of the most important achievements in human history, allowing us to build societies and civilizations. But we aren't the only animals that farm. A species of gopher, the kind that digs holes in your backyard, have its own clever way of getting more food from the plants they eat. So, how do they do this, and what can it teach us about our own farming practices?

Here in the U.S., we travel primarily by car or plane. In Europe, trains are an easy, affordable way to travel. But over the last few decades, trains have struggled to compete with airlines. A new bill could change that and make train travel easier and cheaper once again.

The more we rely on our devices for work, school and our personal lives, the more we have to lose. Whether it’s bank accounts, personal data, photos, conversations — there’s just so much to preserve and protect. That’s why I recommend TotalAV’s industry-leading security suite. It’s easy to use and offers the best protection in the business. In fact, they’ve received the renowned VB100 award for detecting more than 99% of malware samples for the last three years in a row.

Not only do you get continuous protection from the latest threats, but their AI-driven service, WebShield, blocks dangerous websites automatically, stopping threats before they reach you. Plus, you can subscribe to data breach alerts and clear out old files with the Junk Cleaner.