The Real Killer Of The Dinosaurs
AdultsEducationHistoryScienceA ruthless murder was committed! Someone killed the dinosaurs and we have the murderer! Witnesses say that an Everest-sized asteroid hit Earth, devastated the planet and caused a mass extinction. A simple, fascinating and convincing explanation. Or… is it?
How the Most Expensive Swords in the World Are Made
AdultsConstructionEducationHistory...This is a video about how Japanese samurai swords, aka katanas, are made – from the gathering of the iron sand, to the smelting of the steel, to the forging of the blade.
Why Do All YouTube Videos Look Alike?
AdultsCreativityEducationMedia...Many crustaceans from all sorts of starting points evolve to end up looking similar, likely due to outside pressures. That’s sort of like what happens with YouTube videos.
Why Are All Humans Unique? Meiosis: Crash Course Biology
AdultsBiologyHumanScience...Ever wonder why we aren’t exact clones of our parents, or why siblings aren’t exactly alike? The reason traces back to meiosis. In this episode of Crash Course Biology, we’ll discover how egg and sperm cells get made and learn why you’re a totally unique remix of your parents’ DNA.