Why do potato chips bags always have plenty of air inside? Don't be mad about their designers thinking they're just trying to make the bag seem full. It turns out, potato chips are actually that tasty thanks to that air! Not only does it protect the chips from breaking during transportation but also keeps them fresh for longer... Let's see how it works. Here're 30+ hidden secrets about everyday objects surrounding us. Why do crackers have holes in them? Are margins on paper designed for writing in dates and numbering lists? And what’s the difference between a wooden hanger and a plastic one? You'll find the answers to these and more questions in this video.

Your phone is a gadget you most likely use every day. Did you know that the average person spends over 4 hours a day on their phone? It's more that a whole day a week... But I bet there're plenty of secrets your phone is hiding from you. From hidden functions to secret features and buttons. Here're some hidden features on your phone you weren't aware of... With smartphones, we no longer need two hands to use a keyboard − all you need is one good thumb. But typos are easy to make, and all your characters can't fit all at once on that crammed keyboard at the bottom of your phone screen. There's a hidden gem on your iPhone that can help you with it. You might just want to shift your keyboard into Trackpad mode for easier editing. Wanna know more?

Have you ever heard of 'the twilight zone of sleep'? No, it's not a place where vampires sleep or a name of a weird hotel in the middle of nowhere. It's a special technique that can make a true genius out of you. What does it consist of? And how to enter this zone to get a brain boost? The greatest minds: Leonardo da Vinci, Salvador Dali, Thomas Edison - all used this technique to get into the special zone of our brains. It allowed them to be creative and make breakthrough discoveries. Scientists believe that there're answers to the most critical questions for any person in this phase of sleep...

We can hardly imagine a single day without the Internet. It's become an essential part of our everyday routines. The internet has changed business, education, social communication and many other things. It would be impossible to watch this single video without the internet. But just think about it: there are almost 750,000 miles of wires that connect the continents. How do they lay fiber cables underwater? Basically the internet travels across the ocean under water. How it possible? Here's everything you need to know about the technology that started to take shape in the 90s and became something we can't imagine our lives without.

We all know how to eat the food we like and gain weight: sugar, carbs, fast food - these contribute to fat storage. But how about the opposite situation? Here're 18 foods you can eat in big amounts, and they won't make you fat. They're low in calories and will keep you full for longer. Nutritionists suggest that foods mostly made with water are low in calories and contain fiber that helps make you feel and stay full for a longer period of time. Celery, spinach, avocado - what else is on that list?

What's going on down in the ocean depths? The ocean covers around 70 percent of the Earth and is so mysterious. We go diving, descent in submarines, satellite and rovers - everything to explore the hidden treasures of the ocean. Let's take a look at these 10 unusual creatures lurking in the ocean depths. You'll se a giant phantom jelly from the ocean's midnight zone, a goblin shark that looks super scary, a whitemargin stargazer that has eyes right on top of its head. Trust me, you don't learn about these 10 nightmarish sea creatures at school...

Flight cancellation might come as a shocker when you’re sitting in the departure lounge looking at the gorgeous bright sunny weather outside. If there’s not a raincloud or snowstorm in sight, then what gives? Oh yeah, planes can’t fly in extreme heat! In the summer of 2017, 50 flights were canceled at Phoenix Sky Harbor International Airport. The reason: temperatures were a brain-melting 120°F! In the age of super-advanced technology, it seems weird that air travel can be interrupted by an unusually hot day. The reason is actually in the nature of flight itself!

How can you tell if a person is wealthy or faking it? Here are some non-obvious signs someone is rich!

There're many things banned in space: like salt and bread, because crums can damage the equipment. When it comes to beverages, carbonated drinks are off the table as well because they're buoyant in a weightless environment. But pencils are also prohibited to use in space. Why? The answer will surely surprise you... Here're the coolest facts about space to share with your friends. You'll learn why the Moon is not entirely white and devoid of color. And why astronauts need to exercise that much while in space.

You can google anything you want on the Internet. It's full of answers to any questions, lifehacks, or tips to solve any problem. But isn't it so much cooler to impress you friends or classmates with your knowledge even without peeping at the screen of your gadget? For example, have you ever wondered why beds aren't right on the floor? A long time ago, people didn't elevate their mattresses off the floor. This practice started in ancient Egypt and continued in many other cultures. Why was it convenient? And why do we still make beds so high off the floor?