Zach King is one of the biggest TikTok stars, and his creativity and innovation know no bounds. Through magic tricks, creative camera angles, mirrors and a deft editing hand, Zach makes the impossible seem possible. Kim and Zach chat about his creative process, surviving in a competitive online world and how success has enabled him to grow his brand.

The speed of light is a constant we use in principles throughout physics. We know the exact speed that light travels. So, why haven’t we ever truly measured it? It turns out that the answer is more complicated than you might think.

Apps are double-edged swords. They're helpful and essential to get the most out of your phone, but they drain your battery. If your phone can't hold a day-long charge, these apps may be to blame.

They say nothing in life is certain but death and taxes. Well, that's especially true with the IRS. It actually has a plan to continue to collect taxes even in the face of the end of the world as we know it.

Robots have become a normal part of our society. They help build cars, fly planes, vacuum our floors and so much more. But now they are being used to make food commercials even more appetizing. This technology is truly from the future.

In this Digital Life Hack, Kim walks you through everything you need to do to keep your Apple or Android smartphone running smoothly. Improve your battery life, increase your phone's available memory and say goodbye to unexpected crashes and restarts. Kim tells you which apps hog your storage, how to check for malware, why you need to keep up with updates and much more.

Are you tired of weeding through the videos that seem interesting but end up being a disappointment? Stop wasting hours of your life searching YouTube feeds and follow my channel instead! I'll show the videos you actually want to watch and keep you up to date with the latest technology and news — and, of course, incredibly cute videos!

There's a new data breach around every corner! Your phone, computer and other smart devices are constantly bombarded by dangerous malware. So how can you stay safe? Subscribe to Kim's free Fraud & Security Alerts newsletter. You'll learn about data breaches, recalled products and security alerts before anyone else.

Navigating the digital world can be intimidating and sometimes downright daunting. But I'm here to help! Do you want to cut the cable? Maybe you’d like advice on starting your own online business. Or perhaps someone in your family is misusing tech and you need some help.

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