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Primitive Technology: Rock-Throwing Catapult (Trebuchet)

AdultsCreativityEducationNatureDIYEngineeringScience
I 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.
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Why Weather Forecasts Suck

AdultsLifeNatureWeatherScience
There are two types of rain, and one of them is almost impossible to forecast.
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The Deadliest Virus on Earth

AdultsHealthHumanScienceNatureHistory
In the 1970s thousands of Chickenheads rained from the sky in Europe, making foxes and other wildlife confused and very happy. Why?
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Tagging Tiger Sharks | SharkFest | National Geographic

AdultsAnimalsLifeNatureScience
To uncover the secret gathering of Maui tiger sharks, a team of scientists dive in and collect crucial data to help crack the case.
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Food Scientist Breaks Down Every Plant-Based Milk

AdultsEducationFilmFoodScienceNutrition
ood 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.
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Illegal Sound

AdultsHistoryPoliticsScienceMusicHumor
Why This Sound is Illegal to Play
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Could a solar storm destroy modern civilization? - Fabio Pacucci

AdultsEducationScienceSpaceFutureTechnology
Explore the science of solar storms, and find out why they occur and just how prepared we are for a major event.
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Why Water Dissolves (Almost) Everything

AdultsEducationEnvironmentScienceChemistry
Water can dissolve more substances than anything else on earth...so why doesn't it dissolve everything away?
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How Horses Save Humans From Snake Bites

AdultsAnimalsNatureScienceHealth
To make antivenom, you first need to collect venom from the world’s most deadly snakes.
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The ingredient in almost everything you eat

AdultsFoodHumanScienceBiology
Dig into the science of soy, and discover what makes soybeans such versatile plants and whether it’s healthy for you and the planet.
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An Egg Is Just One Cell

AdultsBiologyFoodScience
One of Earth's biggest cells is one you're probably really familiar with.
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The woman who stared at the sun - Alex Gendler

AdultsHistoryHumanLifeScience
Get to know the legacy of Hisako Koyama, whose drawings of the sun’s surface helped scientists reconstruct 400 years of sunspot activity.
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Mineral Extraction: Crash Course Geography #44

AdultsConstructionHumanScienceEducationEnvironment
Today 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.
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Scientists Reveal How Time Travel Is Actually Possible

AdultsHistoryHumanScienceFuturePhysics
Is it actually possible to travel through time? Scientists say "Yes", but what does that actually mean?
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Can you solve the Big Bang riddle? - James Tanton

AdultsHistoryHumanSciencePhysics
It’s moments after the Big Bang and you’re still reeling. You’re a particle of matter, amidst a chaotic stew of forces, fusion, and annihilation.
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The Freshwater Paradox

AdultsEducationLifeNatureScienceEnvironmentWildlife
Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.
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The Rain Shadow Effect

AdultsEnvironmentNatureWorldScienceWeather
Here’s how mountains control the weather.
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How Distant Galaxies Mess With Our Lives

AdultsLifeScienceSpacePhysics
Tiny particles from distant galaxies have caused plane accidents, election interference and game glitches. This video is sponsored by Brilliant.
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How the Kushites Took Over Egypt | Flooded Tombs of the Nile

AdultsHistoryHumanScienceCulture
The Kushites and the Egyptians have a long history that is often forgotten about. Archeologist excavating a Kushite tomb discuss just how interconnected the two cultures were as they discover new artifacts within the tomb.
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Can you outsmart the slippery slope fallacy? - Elizabeth Cox

AdultsEducationHumanSciencePsychology
Dig 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.
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Why You Should Want Driverless Cars On Roads Now

AdultsArtificial IntelligenceIndustryScienceTechnologyTransportation
How close are we to having fully autonomous vehicles on the roads? Are they safe? In Chandler, Arizona a fleet of Waymo vehicles are already in operation. Waymo sponsored this video and provided access to their technology and personnel. Check out their safety report here: