Do you know everything about the objects surrounding you? When something is built or created for the first time, there is typically a logical explanation for every part of the object in question. But with time we tend to forget the initial purpose and some of the important features of the object. Here're 70+ secrets about things you see every day. From metal button on jeans to a hole in the handle of pots - you'll get to know the original purpose of these details. By the way, do you know how to tell if the boiled egg was fresh? Twist it! I'll tell you more about it at the end of the video.

Have you ever experienced this: after you’ve been using something for many years, you found out that it had some other useful features? Like a tiny detail you never even paid attention to, turned out to have an important meaning and purpose. For example, that dark rectangle at the end of your toothpaste tube. Have you ever noticed one? The markings are there for the assembly machines - this way the machines know where to cut and fold each tube. From metal plates at the front of your stapler to the little triangles above each window on a plane... Every object surrounding you has a cool detail. There are many overlooked features about the things surrounding you that actually serve a useful purpose. Let's discover the secrets of ordinary things!

As humans we see an amazing world full of colors with our eyes. But many animals see much more than us. And the way they use their vision is largely unknown to us. For example, octopuses do not have color vision but they can detect polarized light. But it's not the coolest vision out there... Mantis shrimp vision puts everything else to shame. They're the proud owners of the strangest eyes in animal kingdom. What makes their eyes so cool? No other creature has such a unique structure of its visual organ. Each eye has several pupils that constantly change their shape. They can move separately and together, focus on some small objects and see the big picture at the same time.

Do you sometimes feel guilty for being lazy all day? It might seem like you’ve worked for several hours, but still haven't really done anything. Perhaps you urgently need to complete an important task, but you deliberately put it off, or you can't focus. If this sounds familiar, it’s probably not your fault, but your smartphone's. Well, that plus your brain and a unique substance inside it called dopamine. So how to train yourself to check your phone less? Life without smartphones seems impossible. Talking to friends, likes, YouTube, movies, photos, games – we love all the stuff they provide. But we’re so into our phones that we don't notice the bad sides: short attention spans, poor work capacity, and stress. Are there any ways to use your phone less? We’ve got a solution.

You know the feeling. You’re in a familiar place…but everything’s a little off. A stranger is chasing you. Street signs look like gibberish. You’d normally go for your phone, but it’s nowhere to be found. You’re in a dream, and here’s why it’s so different from reality! So what are dreams anyway? And why do we dream? Well, it’s basically your mind trying to reconstruct reality…and failing. In dreams, everything gets mixed around and turned into a mess by our hidden thoughts and feelings. It’s the emotional side of your brain constructing this world, not the logical part that’s more in control in your waking life. Dreams can be fascinating, terrifying, or just weird. Let's listen to some interesting facts about dreams!

Just think about it: you've accidentally locked your keys inside your car. What's the way out and how do you get in? No panic! Duct tape may help you. No, there's no need to break the window and then put the duct tape to cover the hole - there's a cool lifehack waiting for you in this video... Let's take a look at these 20 car tips to help you out in a pinch. You'll find out why you should leave your wipers up in the winter. And how to protect your car doors from getting frozen overnight. Also you'll learn a life hack on what to do when your windows fog from the inside.

When you arrive at a hotel and open your room, don’t rush to open your bags and put all the clothes onto the shelves. Better place your bags into the bathtub. Why? A hotel is a place where lots of people stay every day and you never know what they carry with them... Here're 22 hotel tips and tricks that will save you time and nerves. You'll find out why there's a phone in the bathroom in some hotels. Also, why many hotels only accept credit cards as a form of payment, and without one you won’t be able to book a room. And why you need to think twice if you’re thinking about putting your valuables in the safe for security...

Ready for a shock? Only about 43% of you is actually YOU! Your cells and DNA, the stuff that makes you human. The other 57% is microscopic creatures that help you function properly. So no worries, these non-human guests are supposed to be there! There are plenty more incredible body facts to go with that! Like that your brain is about the size of a pillow case if you could spread it all out! Talk about big brain time!

Earth is a unique planet. Out of all the planets in our Solar System it’s the only one that’s developed life. But what if it’s not the only one out there? What if there’s a second Earth that also has life? Let’s discover what would happen in this scenario. The whole field of astronomy and astrophysics would change and get extra funding. We’d wanna fully explore that second planet and those who live there and how. And of course, the inhabitants of our planet’s doppelgänger would definitely monitor our lives as well…

Drivers, beware: there’s a new best way to park your car. It turns out we've been parking our cars incorrectly. You'll find out why you shouldn't park in the center of a parking spot and parking along the edge is much better. Today we're driving safer cars on safer roads. But it's still better to fresh up your driving tips knowledge every once in awhile. By the way, there're always numerous cool tips out there. In this video you'll learn what's the "Dutch reach" method, why you need to remember the slogan “Reach, Swivel, Look, Open” nd what you should do if it gets too hot inside your vehicle.

Are you a pro Macbook user or wanna become one? Mac users share 16 new tips to boost your experience, I bet you'd wanna try them all right away... There're dozens if not hundreds of MacOs shortcuts you might have even heard once but definitely forgotten or overlooked. It's time to refresh this knowledge! For example, did you know that you can use your airpods to control your Mac volume. By the way, whenever you're too busy to read what your text will sound like, Mac can do it for you. When you get tired of typing the same stuff all over again, customize the autocomplete feature to do it for you. Ready to find out how to do it?