How the Most Expensive Swords in the World Are Made
Adults History
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.
Our Instruction Manual for Existing
Adults History
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.
We're Probably Going to Cure MS
Adults History
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
Adults History
Trace the history of coffee, from its first known origins to its rise in popularity due to trade routes and cultivation.
The Oldest Unsolved Problem in Math
Adults History
Do odd perfect numbers exist?
Ancient Animal Crossing
Kids History
Join Squeaks and Jessi as they learn about a time when lots of animals switched places -- like bears, sloths, armadillos, and more.
Why Does Everything Decay Into Lead
Adults History
If you look at a copy of the periodic table, you might notice that basically every element after lead is labelled as radioactive.
Saber-Toothed Smilodon
Kids History
Smilodon the saber-toothed cat had really big teeth! Join Jessi and Squeaks and learn all about how fossils can tell us how these Ice Age animals lived.
Has The Amelia Earhart Mystery Been Solved?
Youth History
It's one of history's famous mysteries. What happened to a legendary and record breaking pilot who vanished on a epic mission.
Why It Was Almost Impossible to Make the Blue LED
Adults History
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
What Is A Core Sample?
Youth History
Have you ever wanted to go back in time— just to see what it was like? Well, scientists have figured out how …sort of…
Ancient History: India (Maurya Empire)
Youth History
Take a quick dive into the history of ancient India's Maurya Empire.
Ancient History: Athens
Youth History
Take a quick dive into the history of ancient Athens.
Buried Secrets of the Bible with Albert Lin: Sodom & Gomorrah
Adults History
Albert Lin reveals real events behind the epic biblical story of Sodom and Gomorrah.
Why AI Will Spark Exponential Economic Growth | Cathie Wood | TED
Adults History
Investor Cathie Wood explores this unique moment in technology, which she sees as being marked by the simultaneous evolution of five pivotal innovation platforms — a scenario unparalleled in history.
Ancient History: India (Gupta Dynasty)
Youth History
Take a quick dive into the history of ancient India's Gupta Dynasty.
Ancient History: Greece
Youth History
Take a quick dive into the history of ancient Greece.