The Tesla semi-truck has the potential to turn the trucking industry all topsy-turvy. But the guy behind Real Engineering is very skeptical (as are many other skeptics). He watched the Tesla reveal waiting to hear one thing: how much the Tesla semi-truck weighs. But Musk never mentioned it. Why? Because that’s the real variable that determines how quickly the truck will return its investment. And with some fancy math, Real Engineering explains why the ROI may not come quickly enough for the price tag.  

To paraphrase a line from This is Spinal Tap, Terry Crews goes up eleven. His intensity is off the charts, but in this video you get a peek behind that veil. Architectural Digest brings you this tour of Crews’s house, including his man cave. You actually learn a lot about Terry Crews––his hobbies, his family life, and some of his best achievements. Unlike the old episodes of Cribs on MTV, this is a very down-to-earth home. 

The SpaceX program stunned the world when it built a rocket that took off and landed vertically. Obviously that’s a ridiculously hard task to accomplish, but this video helps explain how it works with the help of some hand-drawn animations. And this is no simple explanation––it digs into the difficulties of stabilizing something the shape of a rocket as it changes its parabolic motion. The video also describes the Skylon, a space place that takes off from a regular runway. 

Artificial intelligence and machine learning are all the rage in the tech rags lately. If you are confused about about what machine learning is or how it works, then this excellent CGP Grey video is for you. Using some helpful (and simple) animations, he explains that machine learning basically works like this. There are “teacher bots” and “builder bots.” Builder bots makes algorithms, and teacher bot tests those algorithms. Most of the algorithms fail, so they go back to the builder bot to be rebuilt. Those that pass move on and are improved. It may lack the nuance of a tech journal, but it’s helpful to have a basic understanding. 

Most people have had one too many beers and had to endure a long walk home. The stumbling is embarrassing, of course, but rarely do things get too out of control. This guy, however, is a walking catastrophe. Closed circuit TV tracked his walk home, and boy it was a doozy. You’d think falling down a flight of stairs would have been enough to end his walk home (perhaps permanently!) but no. The dude managed to dust himself off and keep going, despite bumping into nearly every wall possible. 

Everyone has a tape measure or two sitting in their junk drawer or the toolbox that’s gathering dust in the garage. Most of us don’t spend too much time thinking about our tape measures and even less using it, but go dig your tape measure out and watch this video. There are four awesome design features built into your tape measure that make it easier for you to measure alone across long distances or to make marks in your material so you know where your end points are. 

Artificial intelligence is the big topic in both the private technology sector and the academic advancement of technology––not to mention its prevalence in popular culture. But don’t let shows like Person of Interest or movies like Transcendence fool you. We’re nowhere near Artificial Super Intelligence of that sort. So where are we in terms of artificial intelligence? Vox explains how machines learn, which will give you a better idea of the state of AI advancements.  

Chili Klaus is one of the most famous chiliheads (chili lovers, that is) on the planet. He made his name by eating ridiculously hot peppers. In this video, Chili Klaus embarks what can only be considered child abuse with this project: he gets these kids to sing “Oh Come, All Ye Faithful” while eating ghost chili peppers, one of the hottest peppers on the planet. Predictably, things go poorly once the chilis kick in. 

An increasing number of children are being born with Autism. The rising number of Autism Spectrum Disorder (ASD) diagnoses has led to something of a panic, evidenced by the widespread and hard-to-kill idea that vaccinations cause Autism. Well, they don’t. But that’s not the point of this video. The point is to understand the real science of ASD. This video examines some of the environmental and genetic factors that might contribute to ASD.

The 1976 movie “The Network” was a hilarious commentary on the trajectory of television in the late 1970s. Well, it was hilarious at the time, much of the humor is lost on us now. At any rate, the movie’s actors won a boat load of awards for their performances, and much of that is due to the screenwriter’s meticulousness. This video digs into why the actors worked so hard to perform the way the did, and how the screenwriter guided that process.

You may already make the best lasagne on the planet, able to compete with any sweet old Italian grandmother. But don’t worry about that, you don’t need to lack a lasagne recipe to get something out of this video. It’s more than just a recipe for the Italian classic. It’s freaking hilarious. There are loads of small details that make this funny––take, for example, the cookbook that the chef reads around the one minute mark.

Before it was eradicated, smallpox was a serious concern for people all around the world. But, thanks to a huge push by the global medical and scientific communities, the disease has been all but wiped out. This video tells the story of the last time there was a a significant outbreak in the United States, back in 1947. While the United States had been smallpox free before 1947, many parts of the world weren’t. As a result, travelers could bring the disease back to the States, causing sometimes major panics.