Primitive Technology: Rock-Throwing Catapult (Trebuchet)
AdultsCreativityEducationNatureDIYEngineeringScienceI built a trebuchet, a type of catapult that uses a counter weight to store gravitational potential energy which is then used to fire a projectile via a sling.
Food Scientist Breaks Down Every Plant-Based Milk
AdultsEducationFilmFoodScienceNutritionood scientist Rosemary Trout analyzes each and every plant-based milk. From household staples like almond milk and oak milk to the lesser-known hazelnut and banana milk, watch as Rosemary explains not only where these milks are drunk, but how they're cultivated and bottled.
Why Water Dissolves (Almost) Everything
AdultsEducationEnvironmentScienceChemistryWater can dissolve more substances than anything else on earth...so why doesn't it dissolve everything away?
Mineral Extraction: Crash Course Geography #44
AdultsConstructionHumanScienceEducationEnvironmentToday we're going to take a look at mineral extraction -- or the removal of rocks and minerals from the Earths' crust -- and examine how this human activity impacts all aspects of Geography.
Can you outsmart the slippery slope fallacy? - Elizabeth Cox
AdultsEducationHumanSciencePsychologyDig into the slippery slope fallacy, which assumes that one step will lead to a series of events that lead to an extreme— often bad— scenario.
The Longest-Running Evolution Experiment
AdultsData ScienceEducationScienceSpecial thanks to Prof. Richard Lenski and team for showing me around the lab — it is an honor to be able to witness and document such a historic science experiment.
How Many People Did Nuclear Energy Kill? Nuclear Death Toll
AdultsEducationEnvironmentHistoryEnergyHealthScienceNuclear energy creates an uneasy feeling of danger for many people: ancient and dangerous minerals are concentrated to awaken seemingly unnatural powers, creating toxic elements that, if they escape, can and have killed people in horrible ways. How many people has nuclear energy killed and how?
Why no one has measured the speed of light
AdultsData ScienceEducationSciencePhysicsPhysics students learn the speed of light, c, is the same for all inertial observers but no one has ever actually measured it in one direction.
How to Start a Fire in a Survival Situation | Basic Instincts | WIRED
AdultsEducationNatureHumanSurvivalHow-toDr. Bill Schindler, a professor of archeology and anthropology at Washington College, demonstrates a couple of the most effective methods for starting a fire in the wilderness with limited resources.
Is life meaningless? And other absurd questions - Nina Medvinskaya
AdultsEducationScienceWorldPhilosophyDive into Albert Camus’ philosophy of the absurd, and explore the question: if the world is meaningless, could our lives still hold value?