# mathematics

## Brain Teaser: Guess the Diagonal

byJohannes Van Zijl

Try to solve this brain teaser in less than a minute.

| 1 min read

## WATCH: The Banach–Tarski Paradox Explained

byJohannes Van Zijl

| 1 min read

## WATCH: 0 Divided by 0 Equals Any Number

byJohannes Van Zijl

| 1 min read

## Explainer: 9.999... Really is Equal to 10

byJohannes Van Zijl

Math is a strange old thing.

| 1 min read

Now we’re closer than ever to solving a 50-year-old math problem.

| 2 min read

## WATCH: Imaginary Numbers Are Real

byJohannes Van Zijl

Imaginary numbers exist in a whole new dimension!

| 1 min read

The best possible q-analogs of codes may be useful in more efficient data transmission.

| 2 min read

The new method most accurate to date.

| 3 min read

## WATCH: Can You Solve the Bridge Riddle?

byJohannes Van Zijl

Using math, can you get your friends and colleagues over the bridge before the zombies arrive?

| 1 min read

A new theory regarding how the brain first learns basic math could alter approaches to identifying and teaching students with math learning disabilities.

| 2 min read

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