How Electricity Actually Works
AdultsEducationScienceTechnologyPhysicsElectricity is related to magnetism, both being part of the phenomenon of electromagnetism...
What is Sustainability
AdultsEconomyScienceWorldEnvironmentLearn about the various ways that sustainability is defined.
Why are insects important?
AdultsIndustryLifeNatureScienceEnvironmentFoodInsects pollinate plants. While bees and butterflies get all the credit, moths, wasps, ants and beetles are also pollinators. Insects are integral to our food systems as one-third of food crops depends on the important work of pollinators.
We WILL Fix Climate Change!
AdultsFutureScienceWorldEnvironmentGlobal WarmingOur home is burning. Rapid climate change is destabilizing our world. It seems our emissions will not fall quickly enough to avoid runaway warming and we may soon hit tipping points that will lead to the collapse of ecosystems and our civilization.
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.
What Happens if the Moon Crashes into Earth?
AdultsEducationScienceWorldSpaceToday we are answering an age-old very scientific and important question: What if the moon crashes into earth? It’s more interesting and weird than you probably think. Let's start with the basics: Why isn't the Moon on its way to crash into us already?