mathXplosion

In this episode, mathemagician Eric reveals a cool math trick that illustrates the special properties of the number 9.

In this episode, we travel to ancient Egypt with Eric to explore an age-old multiplication method.

Can we measure people by just knowing the size of their heads? Today, we learn about anthropometry's built-in ratios for body measurements.

Mathemagician Eric turns a bird turn into a fish! In order to understand his trick, we learn about the concept of metamorphosis.

What’s the most powerful number in the universe? One million? One billion? One trillion? No, it’s zero! In this episode we explain why.

Can Eric turn one gold coin into more than one billion coins in just one month by applying his knowledge about exponents?

What if somebody dared you to prove that at least two people in your class had the same birthday? Should you take the challenge?

In this episode we learn that reliable measurement units can be derived from everyday objects such as our arm span and our height.

Eric tests the strength of a paper chair. Will it buckle under pressure or will it stand up to the test? Why?

Eric presents an amazing dice trick: Just by looking at a tower of dice, he can accurately calculate the sum of the hidden faces.

Did you know you could draw a perfect circle by using your pinky finger? Are you up for the challenge? Eric is!

In this episode we estimate someone’s birth year and age by merely using a calculator. Is that really possible, and if so, how?

This episode shows how an artist can determine the accurate placement of eyes, ears, nose, and lips on portraits by using proportions.

Why can a regular sheet of paper not be folded more than six times? Mathemagician Eric learns that exponents play a key role.

In this episode, we learn how accurate estimates come about by using clues and information about things in our everyday lives.

This episode demonstrates how following a specific sequence of arithmetic steps will always result in the same answer.

Did you know that most of us are seven feet tall? This episode shows how indirect measures can be used to establish estimates.

This episode introduces the centuries­old Gelosia method: a math trick that uses a lattice grid to multiply large numbers. How does it work?

In this episode, Eric cracks an ancient box used by Roman Emperor Julius Caesar using his knowledge about how to decipher codes.

Have you ever wondered how many ways a shoelace can be tied? Four ways? Six ways? No, 43,000 ways! In this episode we learn how.

In this episode we learn about Roman numerals, such as C, D, V, and X. Can we still use them to communicate?

In this episode we demonstrate how numbers can be converted into palindromes: words or numbers that read the same backward as forward.

If two containers have the same surface area but a different shape: Can they store the same amount of beads?

In this episode we divide a standard Mobius strip into thirds. As we cut the twisty strip into three pieces, none of them has a twist!