Primitive Technology: Geopolymer Cement (Ash and Clay)
AdultsConstructionCreativityEducation...I have made wood ash cement before under the assumption that it was the calcium in the ash that gave it its cementitious properties...
Does Expensive Coffee actually taste better?
AdultsEducationFoodMedia...Coffee beans are one of the most confusing items to purchase, so over the past several weeks, I bought 20+ different kinds of coffee at different price points, visited a local roaster, tried roasting my own beans at home and tested a bunch of types of coffee in order to understand the flavor and price differences of coffee beans.
You have no free will at all | Stanford professor Robert Sapolsky
AdultsBiologyHumanPsychology...How your biology and environment make your decisions for you, according to Dr. Robert Sapolsky.
How the US Is Destroying Young People’s Future
AdultsHumanPoliticsProductivity...In a scorching talk, marketing professor and podcaster Scott Galloway dissects the data showing that, by many measures, young people in the US are worse off financially than ever before.
The Solar System is Beige
AdultsEducationScienceSpace...Whether you grew up with a poster of the solar system on your bedroom wall or not, you've probably got a specific idea of what the planets look like. From brilliantly blue Neptune to the "red planet" Mars. But if you managed to actually visit these worlds, you'd find reality... a little beige.
What Makes Kurzgesagt So Special?
AdultsCreativityEducationScience...We're finally revealing the secret sauce behind kurzgesagt videos.