How the Most Expensive Swords in the World Are Made
AdultsConstructionEducationHistoryArtThis 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.
Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment
AdultsConstructionCreativityEducationScienceExperimentsI tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower.
Why Do All YouTube Videos Look Alike?
AdultsCreativityEducationMediaInternet CultureScienceMany 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.
Intro To Poetry
YouthCreativityWritingEducationLanguageWhat is poetry and what are the rules for writing your own?
The Paradox of an Infinite Universe
AdultsEducationScienceSpacePhilosophyWhat is outside of the universe? We know that the universe had a beginning 14 billion years ago and that it has been expanding ever since.
Why Are All Humans Unique? Meiosis: Crash Course Biology
AdultsBiologyHumanScienceEducationEver 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.