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The Simplest Math Problem No One Can Solve

AdultsEducationHistoryMath...
The Collatz Conjecture is the simplest math problem no one can solve — it is easy enough for almost anyone to understand but notoriously difficult to solve.

The rise and fall of the Kingdom of Man - Andrew McDonald

AdultsHistoryHumanIndustry...
Discover the medieval empire of the Isle of Man and the Hebrides, and how a dynasty of sea kings rose to power.

History's deadliest king - by Georges Nzongola-Ntalaja

AdultsHistoryHumanPolitics...
Dig into the Rubber Terror, the period in which King Leopold II’s horrific regime in the Congo resulted in the deaths of 10 million people.

How one person saved over 2,000 children from the Nazis - Iseult Gillespie

AdultsHistoryHumanWorld...
Get to know the story of Irena Sendler, a social worker who saved over 2,000 Jewish children from the Warsaw Ghetto during WWII.

How Long Did People Use To Live?

AdultsHealthHistoryHuman
https://youtu.be/c_ADG3Qc6rI

A day in the life of an Ancient Greek oracle - Mark Robinson

AdultsEducationHistoryHuman
Follow Aristonike, an Oracle-in-training in Delphi, as she studies to become the Pythia and communicate Apollo’s will and prophecies.

Can you solve the Trojan War riddle? - Dennis E. Shasha

AdultsCreativityEducationHistory
On Olympus, you’ve been waiting for an opportunity to bring the bloody Trojan War to its conclusion.

Web Originals : Ask History: Who Really Invented the Airplane? | History

AdultsConstructionCreativityHistory
Their flight at Kitty Hawk made history, but did the Wright brothers invent the first airplane?

How one design flaw almost toppled a skyscraper - Alex Gendler

AdultsCitiesConstructionHistory...
Dig into the unique engineering of New York City’s Citicorp Center tower, and the design flaw that threatened to topple it.

Whatever happened to acid rain? - Joseph Goffman

AdultsHistoryLifeNature...
Discover what causes acid rain, and how scientists were able to largely eliminate this major environmental threat.

Why every world map is wrong - Kayla Wolf

AdultsHistoryHumanWorld...
Dig into the inaccuracies of flat maps and how different map designs can shift our point of view.

The Ridiculous Way We Used To Calculate Pi

AdultsEducationHistoryMath...
For thousands of years, mathematicians were calculating Pi the obvious but numerically inefficient way. Then Newton came along and changed the game. This video is sponsored by Brilliant.

How would you finish the sentence, “Imagine if…”? - Sir Ken Robinson

AdultsCultureHistoryHuman...
Share how you would reimagine the world by finishing the sentence “Imagine if…”

The artist who won a Nobel Prize... in medicine - Melanie E. Peffer

AdultsEducationHistoryHuman...
Explore how a scientist and artist discovered how our brains transmit signals throughout the body, and laid the foundation for modern neuroscience.

I Asked Bill Gates What's The Next Crisis?

AdultsHistoryHumanLife...
I got the chance to interview Bill Gates so I asked him: Will Covid-19 be the last pandemic? How does he deal with misinformation and conspiracy theories? And what is the next disaster?

How Many People Did Nuclear Energy Kill? Nuclear Death Toll

AdultsEducationEnvironmentHistory...
Nuclear energy creates an uneasy feeling of danger for many people: ancient and dangerous minerals are concentrated to awaken seemingly unnatural powers, creating toxic elements that, if they escape, can and have killed people in horrible ways. How many people has nuclear energy killed and how?

A brief history of divorce - Rod Phillips

AdultsHealthHistoryLife
Dig into the complicated history of divorce— from the earliest known divorce laws in ancient Mesopotamia to modern day.

The rise of the Ottoman Empire - Mostafa Minawi

AdultsHistoryHumanWorld
Explore the early days of the Ottoman Empire, as shrewd political rulers grew the principality into an intercontinental empire.

Wildlife Disappearing at the Border | National Geographic

AdultsAnimalsHistoryNature
The San Bernardino National Wildlife Refuge marks the convergence of the Chihuahuan and Sonoran deserts in a grassland valley at the base of the Peloncillo mountains.

Who decides how long a second is?

AdultsCultureHistoryHuman
Discover how scientists developed atomic clocks, which use the vibrations of atoms to measure and maintain a globally consistent time.

The strange history of the world's most stolen painting

AdultsArtHistoryJustice...
Discover Jan van Eyck’s masterpiece, the Ghent Altarpiece, and explore how it became the world’s most stolen artwork.