Chris Dalariva

What numbers tell us about the biggest hit songs and ourselves?

There's a link to that book in the show notes.

Chris, great.

Great job.

Thanks.

Have you ever wondered, why are rainbows in the shape of a bow?

Why do sunflower seeds, if you ever look at the seeds in the flower, why do they arrange themselves in such perfect spirals?

Why are there some left-handed people, but not very many?

The answers to questions like these become even more intriguing when you look at them through the lens of mathematics.

Eddie Wu is here to show just how much of the world is shaped by math, but we hardly notice it.

Eddie is the head mathematics teacher at Cherry Brook Technology High School in Sydney, Australia, and back in 2012, he began recording his lessons and posting them on YouTube.

creating WooTube, and he now has more than 600,000 subscribers and over 33 million views.

He's also author of a book called It's a Numberful World, How Math is Hiding Everywhere.

Hi, Eddie.

Welcome to Something You Should Know.

Thanks for having me, Mike.

So let's start with a rainbow, because every time you see a rainbow outside, it's always in the shape of a half circle, in the shape of a bow.

But why that shape?

So help me understand this concept in science and math that everything wants to be the same temperature as everything around it, which I think most of us have.

experienced, that's why ice melts in a warm room and why ice freezes outside when it's really cold.