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Can you solve "Einstein's Riddle"? - Dan Van der Vieren

Adults Math
Before he turned physics upside down, a young Albert Einstein supposedly showed off his genius by devising a complex riddle involving a stolen exotic fish and a long list of suspects. Can you resist tackling a brain teaser written by one of the smartest people in history? Dan Van der Vieren shows how.

An Impossible Bet

Adults Math
Should you take the bet?

Can you solve the prisoner hat riddle?

Adults Math
You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty, but their civilization forbids eating highly logical and cooperative beings. Unfortunately, they're not sure whether you qualify, so they decide to give you all a test. Can you solve this hat riddle? Alex Gendler shows how.

The Zipf Mystery

Adults Math
The of and to. A in is I. That it, for you, was with on. As have ... but be they.

The Banach-Tarski Paradox

Adults Math
Holy moly I'm gonna tear my $100 bill into five and rearrange it and boom! I have $200.

The Infinite Hotel Paradox

Adults Math
The Infinite Hotel, a thought experiment created by German mathematician David Hilbert, is a hotel with an infinite number of rooms. Easy to comprehend, right? Wrong. What if it's completely booked but one person wants to check in? What about 40? Or an infinitely full bus of people? Jeff Dekofsky solves these heady lodging issues using Hilbert's paradox.

How folding paper can get you to the moon - Adrian Paenza

Adults Math
Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper to see how many times you can fold it!

The fundamentals of space-time: Part 2 - Andrew Pontzen and Tom Whyntie

Adults Math
Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time, CERN scientists Andrew Pontzen and Tom Whyntie use a space-time diagram to analyze the sometimes confounding motion of light.

How Does The Number Pi Sound Like?

Adults Math
Song from ?.

Can You Solve This?

Adults Math
How do you investigate hypotheses? Do you seek to confirm your theory - looking for white swans? Or do you try to find black swans? I was startled at how hard it was for people to investigate number sets that didn't follow their hypotheses, even when their method wasn't getting them anywhere.