Everything from your smartphone to cordless vacuum cleaner uses a lithium-ion battery, and demand is growing as more electric vehicles hit the market. The issue is that there is only so much lithium on the earth, and we may be running out. So what does this mean for the future?

Wake up with Kim every Saturday morning! Grab a cup of coffee and catch up on top tech news, digital tips and how-tos, and highlights of Kim's show.

Naps are one of life’s great pleasures. Laying down on a Sunday afternoon and dozing off while watching TV is sheer bliss. But sometimes, we wake up from a nap feeling more tired than before. Why is this? And what is the perfect amount of time for a nap?

Nerf guns have been around for decades. During that time, these popular toys have gone through many different iterations and product lines. But, one thing they all have in common is how the shooting mechanism works. This genius of engineering is much more complicated than you may think.

During the Cold War, one of the greatest battles was the space race. This contest was fought through science and engineering. In the middle of it all, the U.S. military created a rocket-powered plane that was able to reach the edge of space. So how did they do it, and what did it take to make this thing go so fast?

You know what’s not fair? Netflix hides thousands of shows and movies from you based on your location and then has the nerve to increase prices yet again. Make sure you’re getting your full money’s worth by using ExpressVPN.

What’s on Netflix in the U.S. is completely different from what someone in the U.K. or Japan has on theirs. ExpressVPN has over 90 countries to choose from, so every time you run out of stuff to watch, just switch to another country to unlock new shows.

Stop paying full-price for streaming services and only getting access to a fraction of their content.