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Primitive Technology: Roasted Ore and Shell Flux Smelt

AdultsCreativityLifeNatureScienceExperiments
I tested 2 ways of improving iron smelts by treating the ore, roasting the ore and using snail shells as a flux. Then finally I recycled old slag to see if it would produce any more iron.
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0:00 / 9:18 • Intro Jamie's Mega Meal Prep | Jamie Oliver

AdultsFamilyFilmFoodCooking
Save time, money, and energy, and create ten delicious meals in under an hour!
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Your Body Killed Cancer 5 Minutes Ago

AdultsBiologyHealthHumanScience
Somewhere in your body, your immune system just quietly killed one of your own cells, stopping it from becoming cancer, and saving your life. It does that all the time.
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Ancient Humans Made Millions Of These - We Don’t Know Why

AdultsConstructionHealthHumanHistoryScience
The Acheulean handaxe was the most common tool of early humans, but we still don’t know what the heck they used it for.
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1816: The year with no summer - David Biello

AdultsHistoryHumanWeatherEnvironmentScienceGlobal Warming
Dig into geoengineering, which uses technology to manipulate Earth’s environments to counteract climate change.
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Why Lightbulbs Might Be The Best Invention Ever

AdultsHistoryScienceTechnology
Lightbulbs might be the best idea ever – just not for light.
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Corn Shouldn't Be Food, But It Is

AdultsEducationFoodScienceCulture
You probably have a bag of frozen corn in your freezer, or have chowed down on a buttery ear of corn at a cookout.
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The HUGE Problem with ChatGPT

AdultsHistoryScienceTechnologyArtificial Intelligence
Free-to-use, exceptionally powerful artificial intelligences are available to more people than ever, seemingly making some kind of news every day.
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The “afterlife” according to Einstein’s special relativity

AdultsEducationLifeSciencePhysics
Sabine Hossenfelder discusses the physics of… dead grandmothers?
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Why I Cook Meat Straight from the Freezer

AdultsFilmFoodMediaHow-to
One of the most annoying and frustrating problems as a home cook, is looking into the fridge on a weeknight and realizing either, the protein you got earlier this week is past the freeze-by date, you have no protein in the first place, or the pack of chicken you threw into the freezer is hours away from being thawed.
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Bear Cubs' First Trip to the Seaside | 4K UHD | Seven Worlds One Planet | BBC Earth

AdultsAnimalsLifeNature
A mother bear takes her cubs to forage for food on the beach with feisty crabs on the menu – but a nip from those claws are the their worries as a larger bear catches their scent…
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Bull Elephant Mines for Salt Buried in the Riverbed

AdultsAnimalsLifeNature
Filmed for first time, bull elephant creates salt cocktail using his trunk and the salt buried in the riverbed.
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Cheat's Mushroom Pizza

AdultsFamilyFilmFoodCooking
So simple and so delicious, this super-easy method gives you tasty pizza in a flash. We’re talking crispy on the outside, spongy in the middle.
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How to Make Money on YouTube with 20M Subs

AdultsIndustryMediaScienceBusinessMarketing
In 2023, Kurzgesagt has existed for 10 years (which is insanely long in internet years).
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How Caffeine Accidentally Took Over The World

AdultsFoodHistoryHumanScienceCulture
Plants don't make caffeine just for us, so what DO they make it for?
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Why do we eat popcorn at the movies? - Andrew Smith

AdultsFoodHistoryHuman
Trace the history of popcorn, from its origins in the Americas to its explosion of popularity in the 20th century.
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Explaining concrete while getting buried in it

AdultsConstructionHistoryScienceEngineering
Concrete = cement + sand + gravel. Cement is the most important man-made material on Earth.
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You’re Not a Lab Mouse, but You Might Be a Wild Mouse

AdultsAnimalsNatureScienceBiology
The lab mice we use for genetic studies are not only closely related, but live out their whole lives in a sterile environment, so they don’t tell us everything we need to know about actual humans.
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The Amazing AI Super Tutor for Students and Teachers

AdultsEducationHistoryHumanArtificial IntelligenceTechnology
Sal Khan, the founder and CEO of Khan Academy, thinks artificial intelligence could spark the greatest positive transformation education has ever seen.
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How Can We Respond to Climate Change?

AdultsHealthHistoryLifeEnvironmentSociety
Now that we know how complex and interwoven climate change is with society globally, we can begin to see it everywhere.
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Harrowing Ocean Encounter with Baby Whale | Bad Natured | BBC Earth

AdultsAnimalsLifeNatureWildlifeEnvironment
Whilst paddleboarding around the beautiful Scottish coast, vet and conservationist Cal Major came face to face with the harsh realities of humans and wildlife sharing a home.