Whether it’s a doot doot doot of an opening riff or a random mix of words from the chorus, 99 per cent of people admit to getting songs stuck in their heads. So what is it about certain songs that make them so catchy? How does a song get stuck in your head?

For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759

In this week's bonus segment Ask Tai Why, Tai takes questions from:

Penelope Cook, Toronto: Is there such a thing as complete silence?

Griff, Yukon: What comes after humans?

Finley, Wakefield, Quebec: Does the core of the earth glow?

In this week's bonus segment Ask Tai Why, Tai takes questions from:

Penelope Cook, Toronto: Is there such a thing as complete silence?

Griff, Yukon: What comes after humans?

Finley, Wakefield, Quebec: Does the core of the earth glow?

Tai is fascinated by what’s in the dark spaces between the stars. Considering there are trillions of stars in the universe (and counting!), it seems a bit odd that the universe isn’t just a blinding ball of light. So then, why is space so dark?

For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759

In this week's bonus segment Ask Tai Why, Tai takes questions from:

Charlotte, Toronto: What is fear, and why were we born with it?

Desmond: What is Time?

George, Toronto: What makes colour a colour?

In this week's bonus segment Ask Tai Why, Tai takes questions from:

Charlotte, Toronto: What is fear, and why were we born with it?

Desmond: What is Time?

George, Toronto: What makes colour a colour?

Tai spends a lot of time imagining how the apocalypse might go down. So, he turns to animals that have survived past apocalypses—like the one that killed the dinosaurs—to see what traits the true survivors have in common.

For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759

In bonus segment Ask Tai Why, Tai answers some questions for a change.

This week, he takes questions from:

Grace, Hamilton: Why do I have freckles

Henry: Why are Video Games so violent?

Alex, Halifax: Are farts changing the climate?

In bonus segment Ask Tai Why, Tai answers some questions for a change.

This week, he takes questions from:

Grace, Hamilton: Why do I have freckles

Henry: Why are Video Games so violent?

Alex, Halifax: Are farts changing the climate?

Tai and his friends all have experiences of being bullied. And, as he learns, it’s a pretty universal thing - even trees are known to bully other trees! Why is such an unpleasant thing so widespread? What is the science behind bullying?

For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759