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Why the Three-Body Problem is Unsolvable*

Adults Math
What is the THREE-BODY PROBLEM? What does it have to do with the award-winning book of the same name?

The Language Counting Paradox

Adults Math
Lots of languages and species are going extinct, but because others keep getting found or described, the official counts of languages and species are still increasing.

Something Strange Happens When You Follow Einstein's Math Veritasium 15.5M subscribers Subscribe 91K

Adults Math
Einstein was wrong about black holes, what else?

Why the Hardest Rocks Can Be Easy to Break

Adults Math
So, rocks are hard. But the scale we use to rank them, the Mohs scale, is only really good at quantifying that for one kind of hardness, and topaz is a perfect stone to talk about to explain that. And you can check it out in our SciShow Rocks Box subscription!

The Oldest Unsolved Problem in Math

Adults Math
Do odd perfect numbers exist?

The Trillion Dollar Equation

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

How The Most Useless Branch of Math Could Save Your Life

Adults Math
There is an entire branch of math simply devoted to knots

Numbers They Don't Teach You In School

Adults Math
There's a strange number system, featured in the work of a dozen Fields Medalists, that helps solve problems that are intractable with real numbers.

This one weird trick will get you infinite gold - Dan Finkel

Adults Math
A few years ago, the king decided your life would be forfeit unless you tripled the gold coins in his treasury.

The Riddle That Seems Impossible Even If You Know The Answer

Adults Math
The 100 Prisoners Riddle feels completely impossible even once you know the answer. This video is sponsored by Brilliant.

Combinations of 52 cards (52 factorial)

Adults Math
Whenever you shuffle a deck of 52 cards, it is quite likely that you are achieving something never done before in history. The number of combinations is 52 factorial.

The Simplest Math Problem No One Can Solve

Adults Math
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.

Can you solve the fantasy election riddle? - Dennis E. Shasha

Adults Math
After much debate, the realm has decided dragon jousting may not be the best way to choose its leaders, and has begun transitioning to democracy.

Why "Nothing" Matters in Science

Adults Math
Null results often get a bad rap, sometimes characterized as a study "finding nothing," but there's a lot we can learn from studies whose results fail to support their hypotheses.

The Ridiculous Way We Used To Calculate Pi

Adults Math
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 Hard Can You Hit a Golf Ball? (at 100,000 FPS)

Adults Math
We used a pressurized vacuum cannon to get the golf ball up to speeds of over 500 miles per hour.

Can you solve the jail break riddle?

Adults Math
You’re a bank robber trying to escape from jail. Can you solve the riddle to get past the fence to freedom?

The Inverse Leidenfrost Effect

Adults Math
Droplets levitate on a bath of liquid nitrogen and are spontaneously self-propelled.

Ant On A Rubber Rope Paradox

Adults Math
Paradoxes are cool!

Mushroom Cloud Myth | Because Science Footnotes

Adults Math
Kyle debunks the Fallout Vault Boy myth, responds to your comments, and more!

Can you solve the Leonardo da Vinci riddle?

Adults Math
You've found Leonardo da Vinci's secret vault, secured by a series of combination locks. Fortunately, your treasure map has three codes: 1210, 3211000, and... hmm.