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How the Most Expensive Swords in the World Are Made

AdultsConstructionEducationHistory...
This is a video about how Japanese samurai swords, aka katanas, are made – from the gathering of the iron sand, to the smelting of the steel, to the forging of the blade.

Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment

AdultsConstructionCreativityEducation...
I tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower.

Musk Oxen Vs Arctic Wolves | Animal Super Parents | BBC Earth

AdultsAnimalsLifeNature
In the Arctic tundra, a herd of musk ox are up against a pack of hungry wolves. Will the parents successfully protect their calves from the predators?

Cardiologist Answers Heart Questions From Twitter

AdultsEducationHealthHuman
Cardiologist Dr. Sunil Rao answers your questions about the heart from Twitter. How do you measure your maximum heart rate?

Our Instruction Manual for Existing

AdultsBiologyHistoryHuman...
Your DNA contains all the instructions your body needs to function. In this episode of Crash Course Biology, we’ll figure out what this giant instruction manual looks like and how this three-billion-letter code gets copied into your trillions of cells through DNA replication.

Is Caviar a scam?

AdultsFilmFoodFun...
Does caviar actually taste good or is it only popular because of it's status as a luxury product? In this video, we find out.

Unlearn junk marketing, build a dynasty | Gary Vaynerchuk for Big Think+

AdultsBusinessInternet CultureMedia...
Gary Vaynerchuk, the entrepreneurial force behind VaynerMedia and VeeFriends, explores the critical missteps businesses make in connecting with their customers, primarily their failure to adapt to consumer needs and their reliance on yesterday’s strategies.

Generative A.I - We Aren’t Ready.

AdultsHistoryScienceTechnology...
New generative A.I breakthroughs are happening almost every week, it seems.

We're Probably Going to Cure MS

AdultsHealthHistoryScience...
You've probably heard of multiple sclerosis, especially if you're a fan of The West Wing. But can we ever cure MS? Yes. But also, no. But also, probably? It's complicated.

How humanity got hooked on coffee - Jonathan Morris

AdultsFoodHistoryHuman...
Trace the history of coffee, from its first known origins to its rise in popularity due to trade routes and cultivation.

Why Do All YouTube Videos Look Alike?

AdultsCreativityEducationMedia...
Many crustaceans from all sorts of starting points evolve to end up looking similar, likely due to outside pressures. That’s sort of like what happens with YouTube videos.

The Paradox of an Infinite Universe

AdultsEducationScienceSpace...
What is outside of the universe? We know that the universe had a beginning 14 billion years ago and that it has been expanding ever since.

Inside the Illegal Ape Trade | Trafficked: Underworlds with Mariana van Zeller

AdultsAnimalsLifeNature...
Mariana van Zeller follows the ruthless and heartbreaking business of the illegal trade of wild apes. But amidst the darkness, she encounters a beacon of hope – Congolese activists fighting tirelessly to protect these apes from vanishing forever.

Frozen Fish Pie | Keep Cooking & Carry On | Jamie Oliver

AdultsFamilyFilmFood...
This is my version of a fish pie. It's delicious and thrifty and I'm heroing most of the ingredients from the freezer. It's so good, you have to try it!

3 Mysteries of the Universe

AdultsEducationScienceSpace
We're still in the dark about what 95 percent of our universe is made of — and the standard model for understanding particle physics has hit a limit.

The Oldest Unsolved Problem in Math

AdultsHistoryHumanMath...
Do odd perfect numbers exist?

What Happens AFTER Nuclear War?

AdultsEducationScienceWorld...
This video was made possible through a grant by Open Philanthropy.

Hyena Clan Attacks Baby Elephant | Savanna Queens | National Geographic

AdultsAnimalsLifeNature...
The Elephant herd fights with the hyena clan before they can take baby Binti as a midnight snack.

Delicious Store-cupboard Chilli | Keep Cooking & Carry On | Jamie Oliver

AdultsFamilyFilmFood...
Who doesn't love a good chilli recipe? This is my store-cupboard chilli, working around what you've got in your cupboards to mix-and-match for ultimate flavour!

The Trillion Dollar Equation

AdultsMathPhysicsScience...
The most famous equation in finance, the Black-Scholes/Merton equation, came from physics.

Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment

AdultsConstructionCreativityNature...
I tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower.