In Nutshell

 Today we're goingto take a look at Logitech's K480 wireless Bluetooth keyboard. So this keyboard is well designed, which is typical for Logitech. It comes in black andwhite colors, and the black version that I have has yellow accents and I think that itlooks good. It's not a very sleek looking device, especially when you compare to itssmaller sibling, the K380, and it is also quite heavy at around 1KG, but its heft helpsin keeping your phones or even a tablet very stable while typing, and keeps them from topplingaway from you even when you keep it on your lap, it also lets you use the touchscreenof your devices without any kind of wobbling, which is a common problem with many touchscreenlaptops. The plastic body squeaks a lot when you tryto bend it, but it still feels strong enough. The holder has a very nice and thick rubberlining inside,  so it holds your devices very well, and I had no problems with using myphones, even with their protective covers on, though it is not ...

 Let's start this video by throwing amouse, a dog, and an elephant from a skyscraper onto something soft. Let's say, a stack of mattresses. The mouse lands and is stunned for a moment, before it shakes itself off, and walks away pretty annoyed, because that's a very rude thing to do. The dog breaks all of its bones and dies in an unspectacular way, and the elephant explodes into a red puddle of bones and insides and has no chance tobe annoyed. Why does the mouse survive, but the elephant and dog don't? The answer is size. Size is the most underappreciated regulator of living things. Size determines everything about our biology, how we are built, how weexperience the world, how we live and die. It does so because the physical laws aredifferent for different sized animals. Life spans seven orders of magnitude,from invisible bacteria to mites, ants, mice, dogs, humans, elephants and, bluewhales. Every size lives in its own unique universe right next to each other,each with...

Over the last decade, milk has become a bit controversial. Some people say it's a necessary and nutritious food, vital for healthy bones, but others say it can cause cancer and lead to an early death. So, who's right? And why are we drinking it anyway?  Milk is the basis of every mammal's diet after birth, when our digestive systems are immature and small. Basically, it's power food to kick-start our bodies and help us grow. Milk is rich in fat, vitamins, minerals, and milk-sugar: lactose. On top of that, for a while after birth, it also contains antibodies and proteins that protect us from infections and regulate our immune system. But it's a lot of effort for mothers to produce. Eventually, humans stop drinking mother's milk and transition to the diet of their parents. This is how it's been for thousands of years. Until about eleven thousand years ago, when our ancestors settled down in the first agricultural communities.  Soon, they domesticated the first...

Cancer is a creepy and mysterious thing. In the process of trying to understand it, to get better at killing it, we discovered a biological paradoxthat remains unsolved to this day: Large animals seem to be immune to cancer, which doesn't make any sense. The bigger a being, the more cancer it should have. To understand why we first need totake a look at the nature of cancer itself. Our cells are protein robots made outof hundreds of millions of parts. Guided only by chemical reactions, they create and dismantle structures, sustain a metabolism to gain energy, or make *almost* perfect copies of themselves. We call these complex chemical reactions pathways. They are biochemical networks upon networks,intertwined and stacked on top of each other. Most of them can barely be comprehended bya single human mind and yet they functioned perfectly... Until.. they don't. With billions of trillions of reactions happeningin thousands of networks over many years, The question is not *if* som...

Human existence is scary and confusing. A few hundred thousand years ago, we became conscious and found ourselves in a strange place. It was filled with other beings. We could eat some; some could eat us. There was liquid stuff we could drink; things we could use to make more things. The daytime sky had a tiny yellow ball that warmed our skin. The night sky was filled with beautiful lights. This place was obviously made for us. Something was watching over us. We were home. This made everything much less scary and confusing. But the older we got, the more we learned about the world and ourselves. We learned that the twinkling lights are not shining beautifully for us, they just are. We learned that we're not at the center of what we now call the universe, and that it is much, much older than we thought. We learned that we're made of many little dead things, which make up bigger things that are not dead, for some reason, and that we're just another temporary stage in a histor...

Everybody is familiar with the feeling that things are not as they should be. That you're not successful enough, your relationship's not satisfying enough, that you don't have the things you crave. A chronic dissatisfaction that makes you look outwards with envy and inwards with disappointment. Pop culture, advertising, and social media make this worse by reminding you that aiming for anything less than your dream job is failure, you need to have great experiences constantly, be conventionally attractive, have a lot of friends, and find your soulmate, and that others have all of these things and are truly happy. And, of course, a vast array of self-improvement products implies that it's all your fault for not working hard enough on yourself. In the last two decades, researchers have been starting to investigate how we can counteract these impulses. The field of positive psychology emerged, the study of what makes life worth living, while cognitive behavioral therapy was...

A lot of things can be beautiful. Landscapes, faces, fine art, or epic architecture; stars in the sky. Or simply the reflection of the sun on an empty bottle. Beauty is nothing tangible, it only exists in our heads as a pleasant feeling. If we have to define it, we perceive something as beautiful if its color, shape, form, or proportion somehow are appealing or delightful to us. Beauty is a very human experience that's been with us for millions of years. Even our first tools were trimmed to a symmetrical shape. Researchers have tried to find practical reasons why our ancestors invested the time to make their tools look nice, but couldn't really identify any. It seems that early humans shaped their tools into teardrops, simply because they liked them better that way. Throughout our history, the definition of beauty has changed a lot.  Ideals have shifted or turned into their opposites. But beyond individual and contemporary tastes some things have never really gone out of fashio...